Journal of Environmental Science and Health Part A, 41:2127–2162, 2006 C Taylor & Francis Group, LLC Copyright ISSN: 1093-4529 (Print); 1532-4117 (Online) DOI: 10.1080/10934520600872433 Some Chemical Contaminant of Surface Sediments at the Baltic Sea Coastal Region with Special Emphasis on Androgenic and Anti-Androgenic Compounds J. Falandysz,1 T. Albanis,2 J. Bachmann,3 R. Bettinetti,4 I. Bochentin,1 V. Boti,2 S. Bristeau,5 B. Daehne,6 T. Dagnac,5 S. Galassi,7 R. Jeannot,5 J. Oehlmann,3 A. Orlikowska,1 V. Sakkas,2 R. Szczerski,1 V. Valsamaki,2 and U. Schulte-Oehlmann2 1 Department of Environmental Chemistry & Ecotoxicology, University of Gdańsk, Gdańsk, Poland 2 Department of Chemistry, University of Ioannina, Ioannina, Greece 3 Department of Ecology and Evolution, J.W. Goethe University, Frankfurt, Germany 4 Department of Chemistry and Environmental Sciences, University of Insubria, Como, Italy 5 Bureau de Recherches Geologiques et Minieres, Orleans, France 6 Limnomar, Laboratory for Aquatic Research and Comparative Pathology, Hamburg/Norderney, Germany 7 Department of Biology, University of Milan, Milano, Italy Androgenic and anti-androgenic compounds including p,p -DDE, Diuron, Linuron, Fenarimol, Vinclozolin, 1-(3,4-dichlorophenyl) urea (DCPU), 1-(3,4-dichlorophenyl)-3methylurea, (DCPMU), tributyltin (TBT) and triphenyltin (TPT) and their metabolites (DBT, MBT, DPT, MPT) as well as metallic elements (Ni, Cu, Zn, As, Cd, Pb, Co, Tl, Cr, Fe, Mn, Al, K, Mg, Na, Ca, Ba, Ti, Sn), PAHs (16 indicator compounds), DDTs and PCBs have been quantified in top layer (0–10 cm) of up to 37 surface sediment samples collected from several sites in costal zone of the Gulf of Gdańsk, an inland freshwater Received January 18, 2006. Address correspondence to Jerzy Falandysz, Department of Environmental Chemistry and Ecotoxicology, University of Gdańsk, 18 Sobieskiego Str., PL 80-952, Gdańsk, Poland; E-mail: [email protected] 2127 2128 Falandysz et al. area of Brdyujście in Poland and the tidal flats of the Norderney Island, Wadden Sea in 2002–2003. These sites differed in the degree of anthropogenic activities, including chemical pollution and related impact on biota. Especially in sediments near shipyards, ship repair facilities, harbours, other industrial activities or close to municipal sewage treatment plant outlets butyltins, PAHs and some metallic elements were found at high concentrations. Diuron, Linuron and DCPMU were detected at a few sites, Fenarimol only once, while Vinclozolin and DCPU were not detected. DDT concentrations in the sediments from the Gdańsk and Gdynia region of the Gulf show a stepwise decrease following the ban for production and use, while diffusion of PCBs at some industrial sites seems to continue. Elevated PAH concentrations in sediments seem to be mainly due to pyrogenic and less to mixed pyrogenic and petrogenic sources, while for a few sites rather petrogenic sources dominated. The reference sites in the Norderney Island, Wadden Sea showed similar or slightly higher loads of DDTs, BTs, PAHs, PCBs and metallic elements when compared to sediments from the least contaminated sites in the coastal Gulf of Gdańsk area, while phenyltins were not detected at both spatially distant European areas. Key Words: Diuron; Endocrine disrupters, Fenarimol; Heavy metals; Linuron; Organotins; PAHs; PCBs; Pesticides; Vinclozolin. INTRODUCTION Since decades, the Baltic Sea and especially the surrounding–its coastal regions are impacted by many anthropogenic factors, including discharged chemicals, which disturb the quality of water and sediments, influence the composition of the aquatic biocenosis, the survival of biota and may eventually bio-accumulate in the food-chain.[1,2] Because of these unsolved environmental problems the Baltic Sea is considered as an area of high scientific interest. Nevertheless, scientific data concerning its pollution by some noxious organic or organo-metallic compounds such as phenylurea herbicides, Fenarimol, Vinclozolin or triphenyltin (TPT), which exhibit androgenic or anti-androgenic activity, are scare or even non-existing. The aim of this study was to assess the environmental exposure to androgenic and anti-androgenic compounds (AACs) in two European areas with different environmental pollution history. Surface sediment samples were collected in autumn 2002 and winter 2002–2003 to assess their androgenic and anti-androgenic potential both analytically and biologically. The selected sampling points included the near shore region of the Gulf of Gdańsk located in the neighbourhood of the cities of Gdańsk and Gdynia, inland sites of the Brdyujście area in the vicinity of the city of Bydgoszcz as well as two reference sites in Northern Germany (Norderney Island). The collected sediment samples were analyzed for the occurrence of AACs and a range of further environmental contaminants. The target analytes included pesticides and their metabolites (p,p-DDT, p,p-DDD, p,p-DDE, Diuron, Linuron, DCPU, DCPMU, Fenarimol, Vinclozolin, tributyltin, dibutyltin, monobutyltin, Surface Sediment Contamination at the the Baltic Sea Coastal Region 2129 Figure 1: Location of the sediment sampling sites in the Gulf of Gdańsk. triphenyltin, diphenyltin and monophenyltin), polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs: naphthalene, acenaphthylene, acenaphthalene, fluorene, phenanthrene, anthracene, fluoranthene, pyrene, benzo(a)anthracene, chrysene, benzo(b)fluoranthene, benzo(k)fluoranthene, benzo(a)pyrene, dibenzo(ah)anthracene, benzo(ghi)perylene and indeno(123cd)-pyrene), and metallic elements (As, Al, Ba, Ca, Cd, Co, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, Pb, Sn, Ti, Tl and Zn). 2130 Falandysz et al. Figure 2: Location of the sediment sampling sites in inland Poland. MATERIALS AND METHODS Study Areas The coastal zone of the Gulf of Gdańsk is the main area of this study. Few sediment samples were also collected from the Brdyujście site of inland Poland as well as two reference sites from Northern Germany (Norderney island), respectively (Figs. 1–3). The Gulf of Gdańsk is part of the Gdańsk Basin which is a southward extension of the Eastern Gotland Basin. This area—frequently treated as a separate natural region because of its maximum depth of 118 m—acts as a sink for suspended matter carried by the Vistula River, the largest river draining into the Baltic proper.[1] The Gulf of Gdańsk is known to be also under the direct impact of an intensively urbanized and industrialized region due to the Trójmiasto agglomeration with two large cities, Gdańsk and Gdynia, as well as numerous small towns, villages and settlements. Some local industrial activities are situated along its southern, western and north-western (Hel Peninsula) coastline. The southwestern region of the coastal zone of the Gulf of Gdańsk is considered as a region of high anthropogenic activity. This is due to a long history of port activity, shipyard and ship repair industry, navy, chemical industry (fertilizer production, petroleum refinery), fishery industry, agriculture, residential and communal heating as well as transport and city run-offs. Surface Sediment Contamination at the the Baltic Sea Coastal Region 2131 Figure 3: Location of the reference sediment sampling sites in the tidal flats of the island Norderney (Lower Saxonian Wadden Sea, Germany). The Brdyujście area in the vicinity of the city of Bydgoszcz is situated about 180 km south of the Gulf of Gdańsk in inland Poland (Fig. 2). At the Brdyujście sites (nos. 50 and 51/52) sewage was dumped, in recent years largely purified, coming from the city of Bydgoszcz with its large chemical industries. The Brda River in the Brdyujście site flows into the Vistula River which enters finally the Gulf of Gdańsk. The two reference sites in Germany (nos. R1 and R2) are situated in the tidal flats of Norderney, an island in the Lower Saxonian Wadden Sea. These two selected sites were routinely tested within the German Federal Environmental Monitoring programme and represent the lower level of contamination with xenobiotics in this area (Fig. 3). Sediment Collection and Processing Thirty seven surface (0–10 cm) sediment samples with a mass of ∼15 kg each were collected in the Gulf of Gdańsk region using an Eckman grab sampler. Sampling sites were selected to obtain a good coverage of different kinds of pollution sources both from fresh and brackish waters in the coastal zone in the Gulf as well as to establish transects from point sources whenever it was relevant and possible in autumn 2002 and winter 2002/03 (Fig. 1). At the same time sediments were collected also in inland Poland (Fig. 2) and at the 2132 Falandysz et al. two reference samples in the tidal flats of the East Frisian island Norderney (Germany) at low tide (Fig. 3). Each wet sediment sample from a particular site was well mixed, divided into aliquots of ∼2 kg and packed into polyethylene bags. The bags were wrapped with aluminium foil and kept deep-frozen until chemical analysis was completed. A ∼2 kg sediment sub-sample from each site was further lyophilized under dark condition. After being dried at 40◦ C sediment subsamples were initially sieved at 2 mm, followed by crushing and sieving at 250 µm, and further divided into several portions and packed into precleaned high or low density sealed polyethylene containers, depending on further chemical analysis. Dry sediment subjected to butyltins and phenyltins analyses were cold stored in brown-coloured containers. The organic matter content of the sediments was determined by weight-loss-on-ignition at 550 ◦ C. FENARIMOL, VINCLOZOLIN, DIURON, LINURON, DCPU AND DCPMU QUANTIFICATION Chemicals Analytical grade standards of Diuron (1-(3, 4-dichlorophenyl)-3, 3-dimethylurea), Linuron (3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea), Fenarimol and Vinclozolin were obtained from Riedel-de-Häen, (Seelze-Hannover, Germany), respectively. The common metabolites of phenylurea pesticides, 1-(3,4-dichlorophenyl) urea (DCPU) and 1-(3,4-dichlorophenyl)-3-methylurea (DCPMU) were purchased from Dr. Ehrenstorfer GmbH (Augsburg, Germany) and were used without further purification (minimum percent purity greater than 98%). Stock standard solutions were prepared at 2 g/L in methanol for Fenarimol and Vinclozolin and in acetonitrile HPLC grade for the rest analytes. Secondary and working calibration standards were prepared at various concentrations by serial dilution in methanol and acetonitrile, respectively. Empore extraction disks of 47 mm diameter containing SDB (styrenedivinylbenzene) copolymer were purchased from 3M (Saint Paul, MN, USA). The SDB disks comprised 10% fibrillated PTFE and 90% 15 µm (particle diameter) SDB adsorbent material. Particles in the SDB disks had an average pore size of 80 Å and a 350 m2 /g surface area. Filter Aid FA 400 was purchased from 3M (Saint Paul, MN, USA) and copper powder (150 mesh, 99.5%) was supplied by Aldrich (Milwaukee, WI, USA). Methanol, dichloromethane, acetone, ethyl acetate, hexane, isooctane and toluene, were trace analysis grade from Pestiscan (Labscan Ltd., Dublin, Ireland). HPLC-grade solvents acetonitrile, dichloromethane, acetone, methanol and water as well as hydrochloric acid and anhydrous sodium sulphate were purchased from Merck (Darmstadt, Germany). Surface Sediment Contamination at the the Baltic Sea Coastal Region 2133 Extraction and Quantification A different extraction methodology was developed for the extraction of the target analytes. A 5 g aliquot of sediment material (freeze-dried) was consequently extracted 3 times using 7 mL each time of the following solvents: acetone, dichloromethane and hexane for Fenarimol and Vinclozolin, while acetone, methanol and dichloromethane were used as the extraction solvents of phenylurea herbicides as well as their metabolites, respectively. Both extracts were combined separately and centrifuged at 5000 rpm for 5 min. Afterwards the supernatants were collected and evaporated to dryness under a gentle stream of nitrogen. The residue for the analysis of Diuron, Linuron and their metabolites was then reconstituted in acetonitrile:water (50:50) up to a final volume of 0.05 mL prior to HPLC-UV/DAD analysis. Further centrifugation or filtration through PTFE membranes was carried out when particulate matter interfered the analysis. Regarding Fenarimol and Vinclozolin analysis, the residue was redissolved in 0.5 mL of methanol, and diluted with distilled water to a final volume of 100 mL. Then the pH was adjusted to 3 and subjected to SPE procedure (clean up step). Isolation of the AACs was performed off-line using a standard SPE-system from Supelco (Bellefonte, PA, USA) connected to a vacuum pump. SDB disks were first activated by wetting with 5 mL acetone. Then, they were washed with 2 × 5 mL ethyl acetate: dichloromethane (50:50 v/v) and were vacuum dried. Methanol (5 mL) was then percolated through the disks and without letting the disk become dry, the diluted extract (100 mL) was applied to a speed of 10 mL/min. Next the disks were dried under vacuum for 10 min. The analytes were eluted in the opposite way to the sample application (back flush desorption) with 2 × 5 mL of a ethyl acetate-dichloromethane mixture (50:50 v/v). The extract was dried over anhydrous sodium sulphate and concentrated under a gentle nitrogen stream to 0.2 mL. Additional clean-up with activated copper powder was mandatory for the elimination of elemental sulphur that causes problems in the chromatographic analysis. The activation of copper powder was performed by washing under sonication (3 minutes) three times each with 20% HCl, water, acetone and toluene. After this procedure, copper remains active for at least 3 months when stored immersed in toluene or cyclohexane. The elimination of sulphur was done in situ by adding into the vials containing the concentrated sediment extract (0.2 mL) about 200 mg of activated copper powder. The mixture (extract and activated copper) was subjected to sonication for 20 minutes, and it was allowed to stand overnight in the refrigerator to let copper complex with free sulphur in the sediment extract. The HPLC system consisted of a Shimadzu (Kyoto, Japan) Model LC10ADVp pump associated with a valve with a 20 µL loop and a Shimadzu Model SPD-10AVp UV-vis diode-array detector connected to a Shimadzu Model 2134 Falandysz et al. Class VP 5 integrator. The analytes were separated by means of a Discovery C18 (250 × 4.6 mm ID: 5 µm) analytical column from Supelco (Bellefonte, PA, USA) that was fitted with a guard column cartridge of the same composition. The detector was set at 252 and 250 nm. Gradient elution was performed by increasing the percentage of acetonitrile in water from 10 to 70% over the first 20 minutes and then to 100% over a 2-minute period. This composition was maintained for 2 minutes, after which time the initial solvent conditions were restored using a linear ramp over a 3-minute period. The column was equilibrated for an additional 5 min before the next sample injection. Flow rate was 1 mL min−1 and the volume injected was 20 µL. The oven temperature was set to 40◦ C. Chromatographic analysis of Fenarimol and Vinclozolin was performed using a Shimadzu 14A capillary gas chromatograph equipped with a 63 Ni electron capture detector (ECD) at 300◦ C. Analytes were separated with a DB1 column (J & W. Scientific, Folsom, CA, USA), 30 m × 0.32 mm I.D., containing dimethylpolysiloxane with a phase thickness of 0.25 µm. The temperature program used for the analysis was: from 55◦ C (2 minutes) to 210◦ C (15 minutes) at 5◦ C/min and to 270◦ C at 10◦ C/min. The injector was set to 240◦ C in the splitless mode. Helium was used as the carrier at 1.5 mL/min. and nitrogen was used as the make-up gas at 35 ml/min according to the optimization results of the instrument given by the manufacturer. Identification of peaks was based on the comparison of the retention times of compounds in the standard solutions. Quantification of the analyzed compounds was performed using the method of the internal standard. Confirmation of the presence of Fenarimol and Vinclozolin was carried out using a QP 5000 Shimadzu instrument, equipped with a capillary column DB-5-MS, 30 × 0.25 mm, 0.25 µm, containing 5% phenyl-methylpolysiloxane (J & W Scientific) at the following chromatographic conditions: from 50◦ C (1 min) to 140◦ C (2 min) at 30◦ C/min and to 280◦ C at 5◦ C/min (12 min). Helium was used as the carrier gas at a flow-rate of 1 mL/min. The ion source and transfer were kept at 290◦ C and 240◦ C, respectively. Electron impact ionization mode, with 70 eV electron energy, was selected. The splitless mode was used for injection with the valve opened for 30 s. The screening analysis was performed in the SIM mode, monitoring at least two characteristic ions for each compound. In some experiments and for confirmation purposes, scan acquisition mode (m/z 50–450) was used. The ion traces were divided into four groups that were recorded sequentially during the injection, on the basis of the retention times of the single substances. In this way we avoid false positives due to the occurrence of other compounds which give common fragment ions but belong to a different retention time group. Surface Sediment Contamination at the the Baltic Sea Coastal Region 2135 Phenylurea Herbicides and Metabolites Sediment samples were spiked at a concentration range of 5–100 µg/kg of the target AACs and extracted using sonication bath coupled to HPLC/UVDAD to check recoveries, method linearity and detection limits in natural matrices. Linearity was evaluated by the calculation of linear plot based on linear regression and the correlation coefficient R2 . All analytes exhibited a linear range from 5–100 µg/kg and an average correlation coefficient above or equal to 0.994 was observed. Replicate analysis of spiked sediments (n = 5) revealed satisfactory recovery values ranged from 66% to 92% for the two herbicides and their metabolites. The limit of detection varied between 0.6 and 0.9 µg/kg for all analytes. Fenarimol and Vinclozolin Replicate analysis of spiked sediments with Fenarimol and Vinclozolin at 25 µg/kg (n = 5) revealed sufficient recovery values of 75% for Fenarimol and 74% for Vinclozolin. Relative standard deviation values were 14% and 11% for Fenarimol and Vinclozolin, respectively. Both compounds had a linear range from 25–400 µg/kg and an average correlation coefficient R2 ≥ 0.995. The limit of detection was 5 µg/kg, to both analytes. Intra-day (repeatability) and inter-day (reproducibility) precision experiments by analyzing three samples spiked at 25 µg/kg of each compound showed excellent results with RSDs less than 12% in all cases. DDTs AND PCBs QUANTIFICATION Extraction and Cleanup Soxhlet extraction of dried sediment (2–3 g) was performed for 8 hours with n-hexane (100 mL). After solvent evaporation under reduced pressure, extractable organic matter (EOM) content was determined gravimetrically. Organic matter was then destroyed with H2 SO4 (98%) and chlorinated hydrocarbons were recovered by shaking with several portions of n-hexane. Next, combined n-hexane extracts were further concentrated down to about 2 mL and passed through a Florisil column (4 × 0.7 cm I.D.) with Cu powder (0.1 g) on the top. Cu powder was previously activated by HCl (18.5%) and washed with water, acetone and n-hexane. The Florisil column was eluted with 25 mL of n-hexane and the eluate was concentrated to exactly 0.5 mL. Quantification and AQ/AC The purified extracts were introduced by on-column injection into a gas chromatograph Termo-Finnigan TOP 8000 equipped with a fused silica column 2136 Falandysz et al. (CP-Sil 8 CB, Chrompack, 50 m × 0.25 mm × 0.25 mm I.D., film thickness 0.25 µm). A Carlo Erba ECD 80 was used as electron capture detector heated at 320◦ C. p,p -DDE, p,p -DDD (Dr. Ehrenstorfer, Germany) and p,p -DDT Pestanal (Riedel-de Haen, Germany) were reference standards used at the final concentration of 10 µg/L in iso-octane. The technical polychlorinated biphenyls (PCBs) formulation of Aroclor 1260 (10 mg/L in iso-octane, Dr. Ehrenstorfer, Germany) was used as reference standard for PCBs quantification. Single PCB congeners were identified and quantified both by reference-pure PCBs (BCR, Brussels, Belgium) and published data.[3] Recovery efficiency was tested on reference sediment previously used in an intercalibration exercise.[4,5] Recoveries for p,p -DDE and PCBs were within 60–80% and for p,p -DDT and p,p -DDE around 50%. PAHs Quantification Sediments were analysed for their contents of PAH (naphtaline, acenaphthylene, acenaphtene, fluorene, phenanthrene, anthracene, fluoranthene, pyrene, benzo(a)anthracene, chrysene, benzo(b)fluoranthene, benzo(k)fluoranthene, benzo(a)pyrene, dibenz(ah)anthracene, benzo(ghi)perylene and indenol(1,2,3-cd)pyrene) according to DIN 38414 S 21 (DIN 1996) by means of HPLC (high performance liquid chromatography).[6] Samples were freeze dried and milled, followed by an accelerated solvent extraction (ASE). Cyclohexane served as extractant. Analysis parameters for the extraction were as follows: extractin pressure was 10 MPa; extraction temperature was 100◦ C; heating time was 5 min; static extraction was 3 × 5 minutes; rinsing with solvent (60% of cell volume) and rinsing with nitrogen (1 MPa for 150 seconds). The sample volume was reduced to 1.0 ml and cleaned over 2.8 ml cartridges with 0.5 g silica gel filling (SPE column). The cleaned extract was transferred into an acetonitrile phase and prepared for HPLC analysis. In deviation from the guideline, the separation was achieved by means of a gradient elution, with parameters as follows: injection volume was 20 µL; column temperature was 20◦ C; flow rate was 0.9 ml/min: at elution time 0–20 minutes acetonitryle in deionized water (50:50; eluent A) was used; at elution time 20–35 minutes acetonitryle (eluent B) was used; at elution time 35–40 minutes, again eluent A was used. For the detection of organic hydrocarbons, both fluorescence detectors and photodiode-array detectors may be used. In order to obtain optimal results, both detector types were used for this study. For quality assurance and control, a standard reference material was analysed (harbour sediment CRM 104, Resource Technology Corporation, USA). The obtained results for these analyses showed concentrations in the certified range. The reported PAH concentrations are mean values of three measurements, each of three digestions of a sediment sample. Surface Sediment Contamination at the the Baltic Sea Coastal Region 2137 ORGANOTINS QUANTIFICATION Chemicals The standards of tributyltin (TBT), dibutyltin (DBT), monobutyltin (MBT), triphenyltin (TPT), diphenyltin (DPT) and monophenyltin (MPT) were purchased from STREAM Chemicals (Bischheim, France). 2,2,4-trimethylpentane (VWR, France), methanol (HPLC) (JT Baker, France), tropolone (99%), acetic acid glacial (99%), ammonium acetate (98%; Lancaster, Bischheim, France), and sodium tetrahydroborate (min. 98%; STREM Chemicals, Bischheim, France) all were of analytical grade. Extraction, Quantification and AQ/AC Organotins were extracted from dried sediment samples by using Pressurized Liquid Extraction (PLE). The following conditions were used for the PFE: temperature 80◦ C, pressure at 100 bars, extraction time 5 minutes and number of cycles was 5. Then, 1 to 10 mg of each sample was extracted with 30 mL of acetic acid 0.5 M in methanol (3/97 v/v) containing 0.2% of tropolone. After extraction, 5 mL of extract were mixed with 2 to 5 mL of 2,2,4-trimethylpentane, internal standard mixture and 2 mL of NaBEt4 (2%) at pH 4.8 (100 mL of acetate buffer 0.6 to 1 M). The 2,2,4-trimethylpentane, which contained the organotin compounds, was recovered and concentrated down to 1 mL under gentle stream of nitrogen. The extract was analyzed by gas chromatography tandem mass spectrometry (GC-MS/MS). GC/MS/MS analyses were performed using a Thermoquest (Les Ulis, France) system consisting of a Trace GC 2000 GC equipped with a PTV split-splitless temperature injector, an AS 2000 autosampler and a POLARIS Q ion-trap mass spectrometer (Thermofinnigan, Les Ulis, France). For data processing, Excalibur software from Thermofinnigan was used. The injector was equipped with a 12 cm × 2 mm I.D. Silcoseeve liner (Thermofinnigan). They 2 µL of extract was injected onto the PTV injector in constant flow mode set at 1 mL/min and with an injection rate of 1 µL/s. The split flow was set at 50 mL/min. The temperature of the injector was initially set at 85◦ C then increased to 300◦ C at a rate of 10◦ C/s where it was maintained for 12 minutes. The PTV split/splitless valve was operating in splitless mode until the temperature of 300◦ C was achieved. Once the temperature stabilized, it was maintained for a period of 1.5 minutes, then changed to split mode. Compounds were separated on a 30 m × 0.25 mm I.D. column, coated with 0.25 µm of 65% dimethyl-35% phenyl polysiloxane phase (BPX-35, SGE, Courtaboeuf, France). The temperature of the column was initially set at 85◦ C for a period of 1 minute, and then increased at different rates to 280◦ C. Helium was the carrier gas at a constant flow of 2138 Falandysz et al. Table 1: Interlaboratory round robin for organotin compounds in sediments. Butyltin species concentration (ng/g) MBT DBT TBT SED 1 (mean value) Measured value SED 2 (mean value) Measured value 111.2 (34%) 126.6 124.7 (50.5%) 93.7 165.3 (19.6%) 168.3 205.3 (19.8%) 247.2 319.2 (13%) 310.3 28.5 (24%) 24.4 1 mL/min. The transfer line was set at 300◦ C with the external ion source at 280◦ C. The ions in EI for the target species were selected and fragmented with helium gas CID in the ion trap. The second-order mass spectra resulting from the most intense fragment were scanned from m/z ion 50 to the mass of the selected ions. The concentrations were calculated using the calibration curves established for each compound in internal standardisation mode with tripropyltin and diheptyltin as internal standards. Organotin compound recoveries for certified reference material (sediment CRM 462 and CRM 646) were in the range of 120–130% for TBT, 90–112% for DBT, 70–89% for MBT, 54–125% for TPT, 77–119% for DPT and 75–100% for MPT. The results of an intercalibration exercise are presented in Table 1. Metallic Elements Quantification and AQ/AC Sediments were analysed for their contents of the elements Ag, Al, As, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, Sn, Tl and Zn according to guideline DIN 38406 E 29 (DIN 1996) by means of ICP-MS (inductively coupled plasma mass spectrometry, Perkin Elmer Elan 6000 or Finnigan PQ3 for tin) and ICP-OES (inductively coupled plasma optical emission spectroscopy, Perkin Elmer Optima 3000).[7] Therefore, 250 mg of the sediment sample were freeze dried (Alpha 1–4, Christ, Osterode/Harz, Germany), and 6 mL HNO3 (65% subboiled), 2 mL H2 O2 and 1 mL HF (suprapure) were added. Sediments were digested in teflon tubes in a High Performance Microwave Digestion Unit MLS 1200 mega (Microwave Lab Systems GmbH, Leutkirch, Germany), combined with a EM-45/A unit for used air. A rhodium solution (50 µL of a 10 mg/L stock solution each) served as internal standard for ICP-MS analysis. Analytical performance of element quantification was checked by analysis of two standard reference material (SRM)—river sediment 1407–1 and sediment GBW 08301. The obtained results for these analyses showed concentrations in the certified range (Table 2). Instruments were optimised by means of a manganese standard (Kraft, Duisburg, Germany) and subsequent calibration was achieved by ICP multielement standard VI (Merck, Darmstadt, Germany). Surface Sediment Contamination at the the Baltic Sea Coastal Region 2139 Table 2: Metallic element data of sediment GBW 08301(µg/g dry matter). Element Ni Cu Zn As Cd Pb Co Mn Cr Certified value Measured value 32 53 ± 6 251 56 ± 10 2.4 ± 0.3 79 ± 12 16.5 ± 1.5 975 ± 34 90 ± 8 32 51 235 53 2.4 88 14 958 86 Instruments were rinsed with 3% HNO3 (subboiled). Analysis parameters for ICP-MS were as follows: CEM voltage, 3.72 V; plasma 1000 W; argon pressure, 4.4 bar; nebulizer gas flow, 0.93 L/min; plasma gas flow, 0.8 L/min. Analysis parameters for ICP-OES were as follows: plasma, 1200 W; argon pressure, 4–5 bar; argon flow 15 L/min; nebulizer gas flow, 0.7–0.9 L/min; plasma gas flow, 0.8 L/min. Al, Fe and Mn concentrations were determined by ICP-OES. The reported metal concentrations are mean values of four measurements, each of two digestions of a sediment sample. RESULTS AND DISCUSSION Overview The sediment collected from the sampling sites in the region of the Gulf of Gdańsk had various texture. The sediments ranged from sandy material at sites 8, 9, 12, 20–22, 30–33, 40–44, 60, 61, 70, 80, and 81 to muddy sediments relatively rich in organic matter (> 2%) at sites 1–7, 11, 13–15, 50, 51/52, 82, 83, R1 and R2 (Figs. 1–3, Table 3). Some bulk data on concentrations of butyltins (BTs), DDTs (p,p -DDE; p,p -DDT and p,p -DDD), PCBs and PAHs but also some individual compounds such as tin (Sn), Diuron, Linuron, (DCPU), (DCPMU), Fenarimol and Vinclozolin in sediment from the sites investigated are summarized in Table 3. Generally, amongst organic contaminants PAH concentrations were greater than those of PCBs, DDTs or phenylurea herbicides. As expected, sediments from shipyard and other industrial sites are characterized by high concentrations of tributyltin and its metabolites. In addition, PCBs, some parent PAHs as well as heavy metals were quantified at elevated concentration at some of the sites sampled (Tables 3, 5, 7 and 8). No live benthic fauna 2140 1 2 3 4 5 6 7 8 9 11 12 13 14 15 20 21 22 Site no. 3.8 10 7.5 8.5 4.9 5.1 2.7 0.4 0.5 11.5 0.5 2.2 7.5 3.9 1.8 1.5 1.7 OM (%) 30 7.2 4.1 2.8 0.64 0.53 0.18 ND ND ND ND ND 0.063 ND ND ND ND BTs µg/g d.m.∗ 38 5.8 5.3 4.2 3.1 2.7 3.2 3.6 0.9 0.3 0.2 0.5 0.9 0.3 0.3 0.4 0.2 Sn µg/g d.m. 34 27 5.4 7.1 6.8 30 0.87 0.16 0.08 0.41 0.17 0.11 0.12 0.09 0.14 0.16 0.26 DDTs ng/g d.m. 420 230 21 52 <0.5 1.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 PCBs ng/g d.m. NA 52 12 5.9 5.7 18 0.73 0.2 NA 2.3 NA NA 2.3 NA NA NA NA PAHs µg/g d.m. 25 ND 25 ND ND ND ND NQ NQ 21 ND ND ND ND ND ND ND Diuron ng/g d.m. ND ND 20 ND ND ND ND 21 NQ 3.8 NQ NQ 2.7 NQ ND ND ND Linuron ng/g d.m. NQ ND ND ND ND ND ND ND ND NQ ND ND ND ND ND ND ND DCPU ng/g d.m. ND ND 19 ND ND ND ND 8.5 NQ 8.5 ND NQ ND ND ND ND ND DCPMU ng/g d.m. NQ 18 ND ND ND ND ND ND ND ND ND ND ND ND ND ND NQ ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Fenarimol Vinclozolin ng/g ng/g d.m. d.m. Table 3: Concentration of organic matters (%), total butyltins, tin, DDTs, PCBs, 16 PAHs, Diuron, Linuron, Fenarimol and Vinclozolin in surface sediments at selected sites in coastal region of the Gulf of Gdańsk, inland Poland and the Wadden Sea at the German North Sea coast (for the sites localization see Figs. 1–3). 2141 1.7 0.5 0.4 0.6 0.3 1.4 1.7 0.3 0.3 15.6 6.2 0.7 0.5 0.6 0.4 1.6 2.6 2.7 5.5 4.1 ND ND ND ND ND ND ND ND ND 0.082 0.10 ND ND ND ND 0.35 0.55 0.63 ND ND 0.3 0.3 0.4 0.2 0.3 0.5 0.3 0.2 0.3 1.4 4.0 0.4 0.3 0.6 0.4 1.5 2.0 1.9 NA NA <0.5 0.16 0.14 <0.5 0.08 0.37 0.33 <0.5 <0.5 24 4.7 0.43 0.35 0.18 0.16 4.0 4.2 3.5 0.65 0.41 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 15 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 42 <0.5 <0.5 <0.5 NA 170 NA NA 0.45 NA NA 0.22 NA 8.8 9.4 NA NA NA 0.25 1.3 2.1 2.1 0.50 0.29 ND ND ND ND ND ND ND ND ND ND ND ND ND ND 5.1 ND ND ND NA NA ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA NA ND ND ND ND ND ND ND ND ND ND ND ND ND ND NQ ND ND ND NA NA ND ND ND ND ND ND ND ND ND ND ND ND ND ND NQ ND ND ND NA NA NQ NQ NQ NQ NQ ND ND ND ND NA 32 ND ND ND ND ND ND ND NA NA ND ND ND ND ND ND ND ND ND NA ND ND ND ND ND ND ND ND NA NA cation; NA (not analyzed); ND (not detected): DCPU < 0.9 ng/g d.m., DCPMU < 0.7 ng/g d.m., Diuron < 0.7 ng/g d.m., Linuron < 0.6 ng/g d.m., Fenarimol and Vinclozolin < 5.0 ng/g d.m.; NQ (not quantified): DCPU < 2.7 ng/g d.m., DCPMU and Diuron < 2.1 ng/g d.m., Linuron < 1.8 ng/g d.m., Fenarimol and Vinclozolin < 15.0 ng/g d.m. ∗ Butyltin 30 31 32 33 40 41 42 43 44 50 51/52 60 61 70 80 81 82 83 R1 R2 2142 Falandysz et al. (molluscs, crustacean, juvenile fishes) was found at the time of sediment collection at sites 1–6, 11, 14, 50, 51/52, 81, 82 and 83 (Figs. 1 and 2). Sediments were found to be much less polluted and with abundant benthic animals at sites outside of the industrial/shipyard zone, the sewage/waste water outfall area with a long history of suspended matter sedimentation or at sites relatively away of the cities. Diuron, Linuron, Vinclozolin DCPU, DCPMU and Fenarimol From the target analytes examined, Diuron, Linuron and their metabolite DCPMU were found in sediments at sites that were mostly under influence of industrial impacts and at a single site receiving more municipal and agricultural impacts rather than industrial discharges. In detail, four positive detections were observed for Diuron and Linuron at concentration ranging from 5.1 to 25 and 2.7 to 20 ng/g dry matter, respectively (sites nos. 3, 8, 11, 14 or 80, respectively). DCPMU was detected at three of these sites with concentrations from 8.5 to 19 ng/g dry matter, while DCPU was not detected at all. Diuron, Linuron and DCPMU were detected at two sites, which are related to some degree of industrial, shipyard, ship repair and municipal impacts (sites nos. 3 and 11). Site no. 3 receives effluents from the sewage treatment plant “Zaspa” in Gdańsk and the Kaszubski Canal in Nowy Port and site no. 11 is influenced by the Reda River. On the other side, at a single coastal site (no. 8) receiving discharges of the Motława River, including also runoff storm water and treated municipal effluents of the city of Gdańsk, both Linuron and DCPMU were detected. At two other sites only Diuron was detected—at shipyard site and sea port—while Linuron was found nearby to the Reda River outlet (sites nos. 1 and 80, Table 3). Fenarimol was only detected once in sediment from the Dead Vistula River Canal nearby to the shipyard canal at Ostrów Island in Gdańsk (no. 2). DCPU, the common metabolite of Diuron and Linuron herbicides as well as Vinclozolin was not found at any site examined (Table 3). There are no previous records on environmental occurrence either of Diuron, Linuron and their metabolites as well as of Fenarimol and Vinclozolin in the Gdańsk region or other areas in the northern part of Poland or in the southern coastal part of the Baltic Sea. Diuron could be additionally applied as active anti-boosting agent in marine paints apart from its agricultural use.[8] DDTs and PCBs p,p –DDE is an impurity in technical DDT formulations (up to ∼4%) but its main origin in the environment is as a metabolite of the pesticide p,p–DDT [1,1,1-trichloro-2,2-bis(4-chlorophenyl)ethane] by various biota (mammals, birds, insects).[9] The acaricide Dicofol [1,1-dichloro-2,2-bis Surface Sediment Contamination at the the Baltic Sea Coastal Region 2143 (4-chlorophenyl)ethane; TDE or p,p –DDD] usually contains some amount of by-side p,p –DDT. The insecticide DDT was intensively used in Poland in the 1950s to the 1970s. Also in the former Eastern Germany, technical DDT was used up to the 1980s.[10] To combat malaria in subtropical and tropical region countries technical DDT is continuously manufactured and used at some amount.[11] p,p –DDE is thermodynamically more persistent when compared to p,p DDT and p,p–DDD, and both p,p–DDT and p,p–DDE can persist for long when bound to soil particles.[10,11] Due to intensive use of DDT in the Polish agriculture in the past soil and soil run-off are considered as a main but decreasingly important source of DDTs (DDT and analogues) for the environment of the Gulf of Gdańsk. To some degree also a long-range trans-boundary tropospheric transport and subsequent aerial deposition could be considered as a source of DDTs to the Gdańsk region.[10,12–16] In earlier studies, sandy surface sediments collected at the northern region of Puck Bay in the Gulf of Gdańsk in 1990 contained DDTs in concentration from 0.039 to 0.35 ng/g d.m., while muddy sediment from the Vistula River at Kiezmark site (near Gdańsk) and from the Gdańsk Depth in the Gulf of Gdańsk colleted in 1992 contained DDTs at concentration of 77 and 15 ng/g d.m., respectively.[17,18] In the same decade a wider range of DDT concentrations was noted in surface freshwater sediments collected in the costal area of Gulf of Gdańsk with mean values ± standard deviations (and ranges) for p,p –DDE at 2.3±4.1 (0.013–14) ng/g d.m., p,p–DDT at 4.9±12 (0.022–51) ng/g d.m., DDTs (p,p- and o,p-DDT, -DDD and -DDE) at 24±41 (0.1–150) ng/g d.m.[19] These concentrations are comparable or even lower when compared to the most contaminated sites impacted by industrial plants and/or sewage outfalls in this study (Table 3). This finding implies a stepwise decreasing pollution trend following cessation of manufacture and ban on usage. However, the DDT concentrations in Gulf of Gdańsk sediments are at a number of the analysed sites in the same range or even lower when compared to the reference sites in the Wadden Sea (Table 3). From the European perspective, DDTs were noted at higher concentrations than for the non-industrial sites in this study at non-industrial sites in the Rhone delta in France (5–15 ng/g d.m.), estuaries in Northern Greece (0.3–60 ng/g d.m.), in Lake Maggiore in Italy (44–140 ng/g d.m.) and in Cyprus (19–699 ng/g d..m.).[20–23] PCB concentrations in sediments at shipyard/industrial sites in the Gdańsk region (nos. 1–4 and 6) or Gdynia Shipyard area (no. 82) generally exceed DDT levels (Table 3). In an earlier study the muddy sediment from the Vistula River at Kiezmark site (near Gdańsk) and from the Gdańsk Depth in the Gulf of Gdańsk, which were collected in 1992, contained PCBs at 5.6 and 1.2 ng/g d.m., respectively.[18] In parallel, for several coastal freshwater sites near the cities of Gdańsk and Gdynia investigated in 1994 sediment PCB 2144 Falandysz et al. concentrations were 110±160 ng/g d.m.[19] When compared to these historical records the findings in our present study imply a continuous leakage and diffusion of PCBs from local sites (Table 3). No PCBs were found in the sediments from the two reference sties in the Wadden Sea (Tables 3 and 4) suggesting a higher prevalence of DDTs diffusion than that of PCBs in the southern region of the North Sea. PAHs Concentrations of the 16 US-EPA priority PAHs varied between 0.20 and 52 µg/g in 16 selected sediments from the Gulf of Gdańsk region, between 8.8 and 9.4 µg/g in sediments for 2 adjacent sites at Brdyujście in inland Poland, and between 0.29 and 0.50 µg/g for the two German reference sites. PAHs concentrations were not uniformly distributed in sediments along the southwestern coastline of the Gulf of Gdańsk. Sediments near the the harbours of Gdańsk (nos. 2–6) and Gdynia (nos. 82 and 83) were generally highly contaminated (Fig. 1, Table 5). Indeno(12cd)-pyrene was found at the Mechelinki site—a former municipal sewage pipe outlet (dumping) site for the city of Gdynia—at a relatively high concentration of 170 µg/g dry matter. The Mechelinki site is localized at the shore of the Gulf and originally was the outlet of the Zagórska Struga creak (site no. 31, Fig. 1). Sediment at the other sites, when compared to the Mechelinki site, were much less contaminated with indeno(12cd)-pyrene, i.e., contained this compound at <0.008 to 1.6 µg/g dry matter. Actually sewage from the city of Gdynia after is further transported by passing the sewage treatment plant in Debogórze pipe and waste water is dumped 1.5 km off-shore in the Gulf. Apart from indeno(123cd)-pyrene, the concentrations of the other fifteen US-EPA PAHs was low at the Mechelinki site, i.e., from <0.009 to 0.047 µg/g dry matters (Table 5). A particularly high total PAH concentration reaching 52 µg/g dry matters was noted at the site close to the vessel bunkering point in the Ostrów Canal, which is a part of the Dead Vistula River Channel with shipyards and some other facilities localized nearby. A high total PAH concentration of 18 µg/g dry matters was also found in sediment collected close to the outlet of the sewage pipe of the Zaspa sewage treatment plant in the city of Gdańsk (site no. 6). A study of untreated (raw) and treated (after clarification) sewage sludge collected from that same plant in 1998 revealed predomination of 4-ring and higher molecular weight congeners and total PAHs at concentration of 12 (8.0–16) µg/g and 14 (9.4–18) µg/g, respectively.[24] The outlet of the waste water pipe is pointed near bottom at the western site of the canal of the Port of Gdańsk. PAH concentrations in sediments collected at the dumping site of waste water and sewage from the city of Bydgoszcz (sites nos. 50 and 51/52) were in the 2145 95 101 110 151 149 153 132 138 187 183 128 174 177 156 180 170 201 203 195 194 206 PCBs CB congener no. 27 14 <0.005 <0.005 120 65 3.3 75 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 38 17 18 17 0.00 12 13 420 1 17 25 <0.005 <0.005 36 32 <0.005 35 14 <0.005 <0.005 13 <0.005 <0.005 31 12 9.8 <0.005 0.24 5.0 2.6 230 2 1.2 0.29 <0.005 1.2 3.2 3.3 <0.005 3.6 1.2 0.59 <0.005 <0.005 0.65 <0.005 2.9 1.6 0.41 0.54 0.22 0.50 0.11 21 3 6 0.11 0.08 <0.005 <0.005 0.31 0.36 <0.005 <0.005 0.18 0.16 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 1.2 4 <0.005 5.2 <0.005 5.7 18 2.2 <0.005 7.3 1.8 1.1 <0.005 1.8 0.92 <0.005 3.8 2.0 0.63 0.72 <0.005 0.50 0.19 52 4.3 1.8 <0.005 2.0 <0.005 1.6 <0.005 2.3 0.43 0.55 <0.005 0.34 <0.005 <0.005 0.57 0.43 <0.005 0.15 <0.005 0.22 <0.005 15 50 Sampling site no. 4.6 1.4 <0.005 2.1 12 6.6 1.1 7.3 1.9 0.76 <0.005 1.7 0.96 <0.005 2.7 1.8 0.82 0.88 0.37 0.76 <0.005 47 82 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.05 R1 Table 4: Chlorobiphenyl (CB) congener and total chlorobiphenyls content of the sediments at selected sites examined (ng/g d.m.). <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.05 R2 2146 2 3 4 5 6 7 8 11 14 31 40 43 50 51–52 80 81 82 83 R1 R2 Site no.∗ 0.26 <0.013 <0.013 <0.013 <0.013 <0.013 <0.013 <0.013 <0.013 <0.013 <0.013 <0.013 0.030 0.26 <0.013 <0.013 <0.013 0.022 <0.013 <0.013 Naphthalene 0.042 0.025 <0.012 <0.012 <0.012 <0.012 <0.012 <0.012 <0.012 <0.012 <0.012 <0.012 <0.012 1.2 <0.012 <0.012 <0.012 <0.012 <0.012 <0.012 Acenaphthylene 1.7 0.015 0.025 0.025 0.14 <0.012 <0.012 <0.012 <0.012 <0.012 <0.012 <0.012 <0.012 <0.012 <0.012 <0.012 <0.012 0.020 <0.012 0.014 Acenaphthalene 2.5 0.023 0.027 0.032 0.34 0.020 <0.010 0.034 0.027 <0.010 <0.010 <0.010 0.17 0.032 <0.010 0.065 0.028 0.074 0.011 0.012 Fluorene 7.1 <0.018 0.75 0.060 3.0 0.032 <0.018 0.14 0.10 <0.018 <0.018 <0.018 <0.018 0.29 <0.018 0.035 0.13 0.14 <0.018 <0.018 Phenanthrene 1.8 0.047 0.094 0.091 0.88 0.031 0.025 0.030 0.027 0.047 0.029 0.086 0.086 3.6 0.056 0.026 0.024 0.032 0.026 0.028 Anthracene 18 0.56 1.4 0.82 4.0 0.19 0.11 0.88 0.96 0.014 0.019 <0.010 0.96 2.7 0.049 0.38 0.60 0.54 0.20 0.042 Fluoranthene 0.22 9.0 0.61 0.55 2.1 0.11 0.008 0.39 0.26 0.032 0.12 0.022 0.54 0.12 0.062 0.18 0.22 0.36 0.12 0.021 Pyrene Table 5: Concentrations of 16 individual PAHs in surface sediments (µg/g dry matter) at selected sites in coastal region of the Gulf of Gdańsk, inland Poland and the Wadden Sea at the German North Sea coast (for the sites localization see Figs. 1–3). 2147 ∗ For 4.8 0.35 0.38 0.49 1.7 0.038 <0.016 0.12 0.13 <0.016 0.12 0.021 0.54 0.059 <0.016 0.063 0.13 0.11 0.026 <0.016 6.6 0.57 0.90 1.0 2.1 0.032 <0.016 0.19 0.14 <0.016 0.099 0.017 1.0 0.13 <0.016 0.17 0.18 0.17 0.019 0.040 the sites localization see Figs. 1–3. 2 3 4 5 6 7 8 11 14 31 40 43 50 51–52 80 81 82 83 R1 R2 2.1 0.29 0.46 0.52 0.81 0.035 <0.010 0.10 0.13 <0.010 <0.010 <0.010 1.3 0.13 <0.010 0.064 0.17 0.13 <0.010 0.014 1.2 0.20 0.29 0.34 0.67 0.022 <0.012 0.062 0.072 <0.012 <0.012 <0.012 0.67 0.048 <0.012 0.034 0.091 0.068 <0.012 <0.012 3.0 0.53 0.62 0.79 1.4 0.059 <0.009 0.15 0.20 <0.009 <0.009 <0.009 1.4 0.19 0.011 0.095 0.23 0.18 0.012 0.028 0.41 0.093 0.18 0.15 0.16 <0.009 <0.009 0.022 0.035 <0.009 <0.009 <0.009 0.35 <0.009 <0.009 0.017 0.048 0.028 0.018 0.021 1.0 0.20 0.32 0.38 0.42 0.097 <0.016 0.067 0.099 <0.016 <0.016 <0.016 0.83 0.47 <0.016 0.061 0.13 0.11 0.029 0.024 1.6 0.25 0.37 0.47 0.53 0.049 <0.008 0.071 0.089 170 <0.008 <0.008 0.94 0.16 0.008 0.055 0.15 0.12 <0.008 0.015 2148 Falandysz et al. Table 6: Parent PAH concentration quotients in the sediment examined. Parent PAH concentration quotient Site no.∗ 2 3 4 5 6 7 8 11 14 31 40 43 50 51–52 80 81 82 83 R1 R2 Phe/Anth Pyrogenic < 10–15 Petrogenic > 10–15 3.9 0.19 8.0 0.66 3.4 1.0 0.36 4.7 3.7 0.19 0.31 0.10 0.10 0.081 0.16 1.3 5.4 4.4 0.35 0.32 Flu/Pyr Pyrogenic >1 Petrogenic <1 82 0.062 2.3 1.5 1.9 1.7 14 2.3 3.7 0.43 0.16 0.23 1.8 23 0.79 2.1 2.7 1.5 1.7 2.0 Lmw/Hmw Pyrogenic< 1 Petrogenic > 1 6.7 0.02 1.1 0.08 0.35 3.2 1.1 0.36 0.3 0.28 <0.01 0.16 0.03 20 0.15 0.19 0.59 0.39 0.08 1.3 Naph/Phen Pyrogenic < 1 Petrogenic > 1 0.04 ∼1 0.008 0.1 0.02 0.18 ∼1 0.04 0.06 ∼1 ∼1 ∼1 ∼3 0.9 ∼1 0.17 0.05 0.16 ∼1 ∼1 ∗ For the sites localization see Figs. 1–3; A half of method limit of quantification value was used to calculate a particular parent PAHs concentration quotients for some sampling sites; Lmw/Hmw [concentration quotient of phenanthrene to pyrene relative to benzo(a )anthracene to benzo(ghi )perylene] [27] . range from 8.8 to 9.4 µg/g dry matter. These PAH concentrations are higher when compared to riverine sediments collected along the Odra River and its tributaries in summer 1998 with measured values between 0.15 and 19 µg/g (6.5 µg/g, on the average).[24] Known sources of PAHs for the aquatic environment are industrial discharges, petroleum spills, combustion of fossil fuels, wood, municipal and industrial waste materials, automobile exhausts and non-point discharges such as urban runoff and deposition via the atmosphere.[25–27] These sources can be considered as contributing to the measured PAHs loads in the coastal zone of the Gulf of Gdańsk but at a local scale and when related to the regional topography single or few sources seem to dominate nowadays. Due to the domination of some individual compounds, two main sources of environmental pollution with PAHs can be distinguished.[26, 28–33] Phenanthrene (Phe) is a thermodynamically more stable tricyclic aromatic congener than anthracene. Hence, petroleum contains more phenanthrene when compared to anthracene (Phe/Ant > 5). On the contrary, hightemperature processes such as incomplete combustion of fossil fuel (e.g., lignite or coal) can result in low Phe/Ant ratios (Phe/Ant <15).[28] Similarly, Surface Sediment Contamination at the the Baltic Sea Coastal Region 2149 fluoranthene (Flu) to pyrene (Py) ratios greater than 1 are attributed to pyrolitic sources, whereas ratios below 1 are related to petrogenic sources, with few exceptions.[26–31] Another diagnostic tool to identify dominant source of PAHs in environmental matrices is the predominance of low molecular weight over higher molecular weight congeners (concentration ratio > 1), which suggest petrogenic origin release.[29,33] Similarly, predominance of alkylated and 2–3-ring over 4–6-ring PAHs suggests petrogenic origin pollution and vice versa is for pyrolytic sources.[26,33] Fresh and unweathered petroleum is characterized by naphthalene to phenanthrene concentration quotient greater than 1.[33] The Phe/Anth concentration ratio is <10–15 for all analysed sediments implying largely pyrogenic origin of PAHs. Nevertheless, there is a wide span for this parameter ranging from 0.086 to 1.3 for eleven and from 3.7 to 8.0 for seven further sites in Poland (Table 6). The Flu/Pyr concentration quotient is >1 for 13 Polish sites and this roughly confirms the pyrogenic origin of PAHs already shown by the low Phe/Anth concentration quotient. However, at five sites (nos. 3, 31, 40, 43 and 80) the ratio is from 0.062 to 0.79 implying a petrogenic source of PAHs in spite of the low Phe/Anth concentration quotient ranging from 0.10 to 0.31 (Table 6). The low molecular weight PAHs predominated (Lmw/Hmw > 1) evidently at three sites (nos. 2, 7 and 51/52) suggesting a petrogenic origin of PAHs but at the same time values of Phe/Anth and Flu/Pyr concentration quotients showed an opposite pyrogenic source, which was especially evident for the sites 2 and 51/52 (Table 6). Apart from the single inland site no 50 with a Naph/Phen ratio around 3 implying petrogenic source, for most other Polish sites the values of Naph/Phen concentration quotients were below 1, thus supporting the suggestion of pyrogenic origin of PAHs in agreement with the other above mentioned parameters. Due to very low concentration of naphthalene or phenanthrene at some sites (Table 5) no exact value of Napth/Phen concentration quotient could be calculated with a quotient reaching ∼1 for the sites 3, 8, 31, 40, 43 and 80. Since all sediment samples in this study could be considered as being more or less influenced by pyrogenic PAHs sources due to the widespread combustion of gasoline as well as hard coal, it is clear that petrogenic sources have only minor significance for most of the investigated sites (Fig. 1). For the two German reference sediments a pyrogenic source of PAHs predominated (Table 6), while individual and total PAH concentrations were relatively low and in the range of some sites from the coast of the Gulf of Gdańsk. For the evaluation of the contamination of aquatic systems by PAH, there are legally established quality objectives in the regulations of the German Bundesländer for the implementation of EU regulation 76/464. When converted to suspended matter and sediments, resulting values range between 400 µg/kg d.w. for benzo(a)pyrene and 1000 µg/kg for 2150 Falandysz et al. benzo(b)fluoranthene, benzo(ghi)perylene, benzo(k)fluoranthene, fluoranthene and indeno(1,2,3-cd)pyrene. In this study however, the more stringent limit values conceived by the Institute for Environmental Chemistry Bremen (1984) were applied.[34] This assessment schema is based on a three-stage model and defines benzo(a)pyrene and fluoranthene, which are known to be highly environmentally harmful, as key substances: benzo(a)pyrene (µg/kg d.m.) fluoranthene (µg/kg d.m.) Class 1 Class 2 Class 3 <180 <250 <1800 <2500 >1800 >2500 In class 1, “ecotoxicological effects are not expected”, in class 2, “ecotoxicological effects are likely at prolonged exposure, especially for sensitive organisms”, and in class 3 concentrations are reached which “make adverse effects on aquatic organisms, e.g. changes in species diversity, probable at long-term exposure.”[34] According to these criteria some sediment are highly contaminated with PAHs and assigned to quality class 3 (sites 2, 6 from Ostrów Island/Dead Vistula River Canal; site 51/52 from Brdyujście). A number of further sediments fall into class 2 (sites 3 and 4 from Ostrów Island, sites 11 and 14 at the outlet of Płutnica River, site 50 from the Brdyujście/Vistula River area, and sites. 81, 82 and 83 in the Gdynia Shipyard and Port of Gdynia region) and a lower number into class 1 (sites 7 and 8 from Brzeźno and North Port, site 31 near Mechelinki although—as pointed out earlier—a high contamination with indeno(123cd)pyrene is apparent, site 80 at Skwer Kościuszki, and sites 40 and 43 near the outlet of the Vistula River). Butyltins and Phenyltins A number of sediment samples collected at some locations in the coastal zone of the Gulf of Gdańsk are apparently highly contaminated with butyltins and total with concentrations ranging from ND to 30 and from ND to 38 µg/ kg d.m., respectively (Table 3). Amongst the numerous synthetic organotin compounds used by man the salts of tri- and dibutyltin and tri- and diphenyltin are important chemicals.[35] No triphenyltin, diphenyltin or monophenyltin could be found at concentrations above the method limit of quantification in surface sediment at any site investigated both in Poland and Germany. On the contrary, tributyltin, dibutyltin and monobutyltin were detected at highly relevant concentrations at the selected sites in the coastal zone of the Gulf of Gdańsk. At the same time the compounds were detected at low concentrations in some further sediment samples from the same region and from inland Surface Sediment Contamination at the the Baltic Sea Coastal Region 2151 Poland or the butyltins remained below the limit of quantification for the applied method (Table 7). In the most contaminated sediments (sites 1–4), the sum of butyltin species reached a high proportion of the total tin concentration, hereby underlining a relatively recent contamination. At the two investigated reference sites in Germany neither phenyltins not butyltins were detected (Table 3). Tributyltin and triphenyltin are widely used biocides, which among other found appliance as an effective antifouling agent released from marine paint formulations directly into the water column. Especially this application leads to a contamination of water, sediments and biota as well as to a damage of many organisms and aquatic animal populations.[36–40] In this study, the sites in the coastal zone of the Gulf of Gdańsk were found to be highly contaminated with BTs, largely due to the continuous release of TBT from nearby shipyards, ports and navy facilities. Potential sources and measured contamination levels in the region are the same as indicated in sediments more than a decade ago (Table 7). The tributyltin content in highly contaminated sediment may decrease relatively rapidly under aerobic conditions due to biodegradation by sediment microorganisms, while the compound is much more persistent under anaerobic conditions.[41,42] The continuous presence of TBT and its degradation products at almost identical concentrations from the 1990s until today of muddy sediments from the Ostrrów Island shipyards, Gdynia Port and its shipyards area highlight the lack of any serious recent control measures. These conditions are highly unfavourable to aquatic life. Metallic Elements The bulk concentrations of As, Al, Ba, Ca, Cd, Co, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, Pb, Sn, Ti, Tl and Zn in analysed surface sediments are given in Tables 3 and 8, respectively. Concentration varied from site to site for Pb, Ni, Cu, Zn, Cd, Cr and to a lesser extent for As, Co, Cr, Sn, and Fe, while only little variability was observed for the other elements. Ni, Cu, Zn, Cd, Pb and Fe concentrations in sediments from the industrial area of Gdańsk and Gdynia with its harbours were elevated when compared to the reference sites from Norderney in the German Wadden Sea. Measured values for the same elements were comparable or even lower than in the reference sediments at the sites from inland Poland and in more sandy sediments collected near the outlet of the Vistula and Reda Rivers (Table 8). For most of the metallic elements quantified in this study concentrations were higher when compared with results for related sites from the inner part in the Gulf of Gdańsk and Puck Bay by other authors.[47–50] In accordance with our findings, these authors also noted that surface sediments at station 2 in the inner part of the Gulf of Gdańsk show elevated levels of Cd, Cu, Pb 2152 Hel port, outer part, 1993 Mechelinki site, pipe outlet, 2002 (30) Mechelinki site, 100 m off the pipe outlet (31) Mechelinki site, 300 m off the pipe outlet (32) Mechelinki site, 600 m off the pipe outlet (33) Puck, small river outlet site, 2002 (11)∗∗ Puck, Mechanical Works site, 2002 (12) Puck, at the port site, 2002 (13) Puck, at the marina site, 2002 (14) Puck, 500 m east off the marina, 2002 (15) Rewa River, outlet region, 2002 (20) Rewa River, 200 m off the outlet, 2002 (21) Rewa River, 500 m off the outlet, 2002 (22) Gulf of Gdańsk, open part, 1994 Hel port, inner part, 1993 ND ND 0.015 ND ND ND ND 0.026 0.17 (0.17–0.17) 1 1 1 1 1 1 1 1 2 0.027 ND ND ND ND 1 1 1 1 1 1 0.020 ± 0.003 (0.015–10.024) ND 0.012 ± 0.017 (<0.0006–0.035) MBT 11 5 Baltic Sea, southern part Baltic Sea, southern part–open area, 1994 Gulf of Gdańsk Puck Bay Various sites, 1995 n Site and year ND ND <0.0008 ND ND 0.0043 0.055 (0.006–0.10) ND ND ND ND 0.02 ND ND 0.011 ± 0.013 (<0.0008–0.0043) ND 0.006 ± 0.008 (<0.0008–0.016) DBT ND ND ND 0.031 0.28 (0.18– 0.37) 0.028 ND ND <0.0010 0.051 (<0.0010–0.10) 0.024 ND ND ND ND ND ND ND 0.14 ND ND ND 0.10) 0.028 BTs ND ND ND ND 0.10 ND ND 0.068 ± 0.032 (0.023–0.11) ND 0.010 ± 0.017 (<0.010–0.039) TBT This work This work [43] This work This work [43] [43] This work This work This work This work This work This work This work This work [43] [43] Reference Table 7: Butyltins (BTs) content of surface sediments (mg butyltin cation/kg dry matters) from the southern part of the Baltic Sea and inland Poland. 2153 0.69 0.33 24 ± 21 (4.6–46) 1 1 3 1 3 8 Ostrów Island area, GSR, 2002 (1) Ostrów Island area, 1997 Ostrów island area, 1997 0.72 1.0 29 ± 18 (8.0–42) 0.16 7.9 ± 5.7 (2.0–17) 0.052 1 0.059 8.6 ± 7.7 (1.2–23) 0.01 1 ND ND ND 9.0 9.3 ± 2.8 (6.5–12) ND ND ND 1 5 2 0.13 0.12 0.20 ND ND 3.0 11 ± 3 (9.0–14) 0.059 0.089 0.074 ND ND 1 1 1 1 1 — — 0.77 ± 0.26 1.8 ± 2.7 (0.61–4.3) (0.56–0.95) 1 3.0 5.1 21 1.4 ± 1.8 (0.17–8.4) 1.4 ± 2.7 (0.020–9.8) 1 ND ND 3 3 Gdynia, Skwer Kościuszki site, 2002 (80) Gdynia, Gdynia Shipyard, 2002 (81) Gdynia, Passenger ships terminal (82) Gdynia, Nauta Shipyard, 2002 (83) Kacza River, outlet, 2002 (60) Kacza River. 100 m off the outlet, 2002 (61) Jelitkowski Creak, outlet, 2002 (70) Vistula River, outlet (40–44) Sea/Vistula Channel interface, 2002 (8–9) Coastal inland region Dead Vistula River Channel Port Gdańsk canal, 500 m off the sewage treatment plant pipe outlet, 2002 (7) Port Gdańsk canal, close to the sewage treatment plant pipe outlet, 2002 (6) Kaszubski canal, Wisłoujście, 1993 Kaszubski canal, Nowy Port, 2000 (3) Ostrów Island area, GSR, 1997 Gdynia marina, 1993 Gdynia marina, 1998 Gdynia seaport, 1993 Gdynia seaport, 1993 1.2 0.40 ND ND ND 0.77 1.2 1.5 ND ND ND 17 6.0 1.8–2.9 5.8 This work This work This work This work This work This work This work This work This work This work This work [43] [45] [44] [43] 2.6 [46] 9.6 This work 84 ± 51 [46] (30–130) 57 69 This work 19 ± 5 (13–29) 40 ± 10 [46] (29–48) 16 ± 12 (2.8–38) 33 ± 27 [46] (5.8–80) (Continued on next page) 1.2 8.3 31 ± 12 (18–40) 0.99 0.33 ND ND ND 0.58 1.0 1.2 ND ND 8.5 3.2 ± 5.9 (0.024–23) ND — 3.2 ± 3.4 (1.2–7.3) 2154 0.0036 0.011 0.00050 0.012 0.048 0.0021 0.0033 0.0083 0.034 0.024 1 1 1 1 1 1 1 1 1 1 0.12 0.17 0.036 0.072 0.15 0.19 < 0.073 ND 0.003 0.12 0.14 0.001 This work This work [46] [46] [46] [46] [46] [46] [46] [46] [45] 0.93 0.019 0.048 This work This work This work [46] [45] [45] Reference 17 5.9 1.4 0.14 11 3.9 BTs 0.023 0.041 <0.0010 <0.0008 0.010 0.023 0.051 0.024 0.12 <0.0010 <0.0008 0.0061 0.015 0.027 <0.0008 0.0096 14 3.8 0.98 0.12 5.6 ± 5.6 (0.12–14) 1.2 ± 1.7 (0.073–6.8) 0.3 4 ± 0.41 (0.049–1.5) TBT taken or adopted from the references cited, respectively; MBT (monobutyltin); DBT (dibutyltin), TBT (tributyltin); ND (not detected); NA (Not analyzed); ∗∗ For the sites localization see Figs. 1–3; Quantification limit of the method for COMPRENDO samples is, in mg butyltin cation/kg dry weight, 0.044 for MBT, 0.10 for DBT and 0.37 for TBT; 0.007 for MBT, 0.016 for DBT and 0.073 for TBT in sediments 7, 8, 14, 50 and 51. ∗ Data Szczecin Lagoon Karnocice site, 1994 Stepnica harbour, 1994 Inland waters Gdańsk region Wieżyca River, Starogard Gd. below Polfa,1994 Gdańsk, Olszynka site, drainage canal, 1993 Gdańsk, RN Gdańsk site, drainage canal, 1993 Gdańsk, Czarna Łacha River, RN site, 1993 Szczecin region Świna River, Płachnin, 1994 Świnoujście, Mieliński Canal, 1994 Bydgoszcz region, Brda River –outlet to the Vistula River, 2002 (50) - sewage treatment plant site, 2002 (51–52) 1 0.42 2.1 1 0.59 1.5 1 0.11 0.32 1 0.017 <0.0008 7 3.2 ± 0.3 (0.20–9.9) 2.0 ± 1.8 (0.12–5.3) 15 1.7 ± 1.5 (0.26–4.8) 0.97 ± 1.09 (0.08–4.3) 11 0.45 ± 0.30 0.18 ± 0.10 (0.15–0.90) (0.04–0.29) DBT Ostrów Island area, 2002 (2) Channel, Siennicki site, 2002 (4) Motława River site, 2002 (5) Channel, Sobieszewo site, 1993 Marina—Yacht Club “Neptun”, 1998 Marina—Yacht Club of Gdańsk Shipyard, 1998 Marina—AKM-AZS, 1998 MBT n Site and year Table 7: Butyltins (BTs) content of surface sediments (mg butyltin cation/kg dry matters) from the southern part of the Baltic Sea and inland Poland. (Continued) 2155 2 3 4 5 6 7 8 11 14 31 40 43 50 51–52 80 81 82 83 R1 R2 Sampling site no. 20 26 19 12 9.3 9.5 2.3 5.7 5.6 1.7 1.3 1.9 17 27 3.2 4.8 7.3 7.7 9.8 8.0 Ni 180 67 120 30 34 13 1.7 7.3 5.8 1.9 1.0 1.4 59 77 14 14 26 23 5.7 5.6 Cu 550 240 590 260 270 61 13 41 366 14 17 17 520 110 29 77 130 140 38 37 Zn 8.4 7.0 7.3 4.7 3.0 4.3 0.92 3.6 3.0 0.85 0.78 1.7 3.2 2.8 1.3 2.2 3.2 3.7 6.6 6.6 As 2.4 0.75 1.8 1.4 2.1 0.37 0.08 0.32 0.26 0.11 0.05 0.06 1.1 1.1 0.12 0.35 0.69 0.66 0.22 0.22 Cd Co Tl 190 9.0 0.51 130 8.1 0.46 150 11 0.36 48 5.9 0.40 61 3.2 0.31 21 3.9 0.24 7.0 1.2 0.15 19 2.3 0.25 14 2.8 0.24 5.0 0.96 0.16 4.1 0.92 0.12 5.1 1.0 0.15 99 10 0.20 54 6.1 0.19 21 3.4 0.18 19 2.9 0.21 29 3.6 0.25 36 3.7 0.28 18 5.0 0.32 18 5.0 0.32 (Continued on next page) Pb Table 8: Concentrations of metallic elements in surface sediments (µg/g dry matter) at selected sites in coastal region of the Gulf of Gdańsk, inland Poland and the Wadden Sea at the German North Sea coast (for the sites localization see Figs. 1–3). 2156 2 3 4 5 6 7 8 11 14 31 40 43 50 51–52 80 81 82 83 R1 R2 Sampling site no. 63 64 81 38 37 29 11 19 15 6.9 2.3 4.0 55 130 11 30 26 29 44 31 Cr 21000 37000 37000 18000 12000 26000 4600 15000 13000 4400 2200 2400 13000 12000 5200 8800 12000 12000 11000 9300 Fe 250 400 725 290 190 240 160 110 180 110 68 53 500 240 100 115 150 160 240 230 Mn 24000 20000 25000 26000 19000 19000 13000 18000 17000 12000 7500 9100 13000 14000 14000 18000 18000 22000 27000 20000 Al 11000 16000 10000 14000 9200 11000 7300 11000 9600 7600 4800 6700 4700 6500 8800 10000 11000 12000 13000 9200 K 3900 1200 4100 3500 2400 2700 900 3000 2700 740 170 260 2500 1100 1200 1900 1700 3100 4000 3000 Mg 5000 9200 5900 5100 5900 4200 4400 5500 4100 3500 2100 2200 2200 2900 3800 4400 4400 5200 9300 7100 Na 19000 12000 15000 26000 11000 18000 3000 8700 6700 4600 1100 4000 38000 39000 12000 13000 16000 15000 25000 15000 Ca 370 400 360 310 240 250 180 230 220 170 130 170 230 190 180 220 270 280 270 200 Ba Ti 1800 1700 1600 1800 1100 1300 1500 1400 1300 1200 250 130 1500 570 1000 1300 1600 1700 1800 1400 Table 8: Concentrations of metallic elements in surface sediments (µg/g dry matter) at selected sites in coastal region of the Gulf of Gdańsk, inland Poland and the Wadden Sea at the German North Sea coast (for the sites localization see Figs. 1–3). (Continued) Surface Sediment Contamination at the the Baltic Sea Coastal Region 2157 and Zn, while concentrations of Al, Fe, Ti, Th, Ni, Co, K, Ca, Mg, U and Mn are more uniformly distributed, indicating a more terrigenous origin.[47,50] It was also shown that surface sediments (unsieved fraction < 2 mm) collected from 24 sites in the Gulf of Gdańsk in 1988–1989 were characterised by an anthropogenic enrichment with Ag, Cd, Pb and Zn, while concentrations of Al, Ca, Co, Cr, Cs, Cu, Mn, Ni, Fe, K, Li, Mg, Na, Sr and Rb were in the range of the geochemical background.[49] In another attempt, a sediment core collected at the mouth of the Vistula River and two cores taken at the inner part of the Puck Bay in 1991 showed in their finest fraction of < 2 µm anthropogenically enriched loads of Ag, Cd, Pb and Zn and possibly also Cu and Ni, but not for Al, Ca, Co, Cr, Fe, K, Mg, Mn and Na.[50] In our study particularly high concentrations of Cu (120–180 µg/g d.m.), Pb (130–190 µg/g d.m.), Cd (1.4–2.4 µg/g d.m.) and Zn (260–590 µg/g d.m.) were found in sediments from the Gdańsk city waterways of the Dead Vistula River Channel, the Motlawa River and around the Island of Ostrów (Table 8). At some of these sites also highly elevated concentrations of Ni, Co, Cr, Fe, Mn and Mg were noted (Table 8). Sediments were assigned to contamination classes according to the chemical classification system of LAWA (1998) with its transformation according to the five-stage ecological status classes system of the EU Water Framework Directive (EU-WFD) developed by Duft et al.[51,52] Sediments are assigned to a ecological status class, based on the measured concentrations for Cd, Cr, Cu, Ni, Pb, and Zn. Ecological status classes I and II represent a high and good ecological status and thus the aim that should be achieved for all European water bodies in the next years. Status classes III, IV and V indicate increasing levels of distortion resulting from human activity and require remediation action. In status class III, the first community-level effects are apparent, while in status class IV relevant biological communities deviate substantially from those normally associated with the water body type under undisturbed conditions. In class V large portions of the relevant biological communities are absent.[51,52] Among the examined sediments those taken at sites 2, 4 and 50 were assigned to class V (EU-WFD) due to highly elevated Cd, Cr, Cu, Ni, Pb and Zn concentrations, sediments from sites 3, 5–7, 11, 51–52 and 82–83 were assigned to class IV, while remaining sediments (R1, R2, 8, 14,31, 40, 43, 80 and 81) showed low (status class III) or no risk (status classes I and II) got the benthic community (Table 8). CONCLUSIONS Thirty-five bulk surface sediment samples were collected in the coastal area of the Gulf of Gdańsk in the neighbourhood to the cities of Gdańsk, Gdynia and Puck, and at the selected inland locations in Brdyujście in Poland 2158 Falandysz et al. as well as at two reference sites in the German Wadden Sea (Norderney Island). These sediments were comprehensively analysed for androgenic and antiandrogenic compounds such as butyltins, phenyltins, p pDDE, Fenarimol, Vinclozolin, Linuron and Diuron, the metabolites DCPU and DCPMU as well as for p pDDT, p pDDD, PCBs, 16 PAHs and 19 metallic elements. The analytical findings revealed high contamination levels, indicating a possible direct sediment toxicity and resulting ecological problems for the benthic biological communities at the most polluted locations. There was a wide span of measured concentrations for most analytes and the different sites investigated. Among chemicals examined butyltins, PAHs and heavy metals were found to play a most significant role as possible anthropogenic stressors for the bottom communities in the areas investigated. The potential impact of PCBs or DDTs, although present in almost all samples, was lower, while pesticides such as Diuron, Linuron, Fenarimol, Vinclozolin and phenyltins were only found occasionally. Spatial distribution of chemicals pointed on the high impact from ship repair facilities, shipyards, industrial and municipal sewage outfall and dumping areas as sources of the compounds examined. When compared with earlier investigations in the same are, there was only little evidence for a decline especially in sediment-associated butyltin concentrations at high risk sites (ship repair and shipyard industry, port and navy activities). Consequently, sediments in these areas continue to pose a detrimental stress for the aquatic communities. Polychlorinated biphenyls diffusion seems to continue also at a few of the industrial sites investigated. The two reference surface sediments collected at Norderney Island in the German Wadden Sea exhibited a comparable contamination level for most of the analysed compounds when compared with the lowest contaminated sediment samples from the southwestern part of the Gulf of Gdańsk. ACKNOWLEDGMENT This study has been funded under 5 FP of the European Union (COMPRENDO project, contract EVK1-CT-2002–00129). REFERENCES 1. Falandysz, J.; Trzosińska, A.; Szefer, P.; Warzocha, J.; Draganik, B. The Baltic Sea: especially southern and eastern regions. In Seas at The Millenium: An Environmental Evaluation. Vol. I Regional Chapters: Europe, The Americas and West Africa; Sheppard, C.R., Ed.; Elsevier Science Ltd.: 2000; 99–120. 2. Monitor 16. Persistent Organic Pollutants. A Swedish View of an International Problem; Swedish Environmental Protection Agency: 1998. ISBN 98–620–1189–8. 3. Newmann, J.W.; Becker, J.S.; Blondina, G.; Tjeerdema, R.S. Quantitation of Aroclor using congener-specific results. Environ. Toxicol. Chem. 1998, 17, 2159–2166. Surface Sediment Contamination at the the Baltic Sea Coastal Region 2159 4. CIPAS. Commissione Internazionale per la Protezione delle Acque Italo-Svizzere. Monitoraggio della presenza del DDT e di altri contaminanti nell’ecosistema Lago maggiore, Rapporto annuale Campagna 2003, CNR., I.N.E. Verbania Pallaza, 2003; 69 pp. 5. CIPAS. Commissione Internazionale per la Protezione delle Acque Italo-Svizzere. Monitoraggio della presenza del DDT e di altri contaminanti nell’ecosistema Lago maggiore, Rapporto annuale Campagna 2003, CNR., I.N.E. Verbania Pallaza, 2004; 78 pp. 6. DIN 38414 S21. Bestimmung von 6 polyzyklischen aromatischen Kohlenwasserstoffen (PAK) mittels Hochleistungs-Flüssigkeitschromatographie (HPLC). In: Fachgruppe Wasserchemie der GDCh und Normenausschuss Wasserwesen (NAW) im DIN Deutsches Institut für Normung e.V. (ed.): Deutsche Verfahren zur Wasser-, Abwasserund Schlammuntersuchung. Band 1. VCH, Weinheim; Beuth, Berlin, Germany. Loseblattsammlung, 1996. 7. DIN 38406 E29. Bestimmung von 61 Elementen durch Massenspektrometrie mit induktiv gekoppeltem Plasma (ICP-MS). In: Fachgruppe Wasserchemie der GDCh und Normenausschuss Wasserwesen (NAW) im DIN Deutsches Institut für Normung e.V. (ed.): Deutsche Verfahren zur Wasser-, Abwasser- und Schlammuntersuchung. Band 1. VCH, Weinheim; Beuth, Berlin, Germany. Loseblattsammlung, 1996. 8. Konstantinou, I.K.; Albanis, T.A. Worldwide occurrence and effects of antifouling paint booster biocides in the aquatic environment: A review. Environ. Intern. 2004, 30, 235–248. 9. Ahlborg, U.; Lipworth, L.; Titus-Ernstaff, L.; Hsieh, C.; Hanberg, A.; Baron, J.D.; Trichopoulos, D.; Adami, H. Organochlorine compounds in relation to breast cancer, endometrial cancer and endometriosis: An assessment of the biological and epidemiological evidence. Crit. Rev. Toxicol. 1995, 25, 463–531. 10. Falandysz, B.; Strandberg, L. Strandberg and C. Rappe, C. Tris(4chlorophenyl)methane and tris(4-chlorophenyl)methanol in environmental matrices from the Baltic south coast. Environ. Sci. Technol. 1999, 33, 517–521. 11. UNECE. Risk profile and summary report for Dicofol., 2003. 12. Falandysz, J. Polychlorinated biphenyl concentrations in cod-liver oil: Evidence of a steady-state condition of these compounds in the Baltic area oils and levels noted in Atlantic oils. Arch. Environ. Contam. Toxicol. 1994, 27, 266–271. 13. Strandberg, B.; Strandberg, L.; van Bavel, B.; Bergqvist, P-A.; Broman, D.; Falandysz, J.; Näf, C.; Papakosta, O.; Rolff, C.; Rappe, C. Concentrations and spatial variations of cyclodienes and other organochlorinaes in herring and perch trom the Baltic Sea. Sci. Total Environ. 1998, 215, 68–93. 14. Falandysz, J.; Brudnowska, B.; Iwata, H.; Tanabe, S. Organochlorine pesticides and polychlorinated biphenyls in the Vistula River water (in Polish). Roczn. Państw. Zakł. Hig. 1999, 50, 123–130. 15. Falandysz, J.; Brudnowska, B.; Iwata, H.; Tanabe, S. Organochlorine pesticides and polychlorinated biphenyls in ambitne air in Gdańsk. Roczn. Państw. Zakł. Hig. 1999, 50, 39–47. (in Polish). 16. Falandysz, J.; Brudnowska, B.; Kawano, M.; Wakimoto, T. Polychlorinated biphenyls and organochlorine pesticides in soils from the southern part of Poland. Arch. Environ. Contam. Toxicol. 2000, 40, 173–178. 17. Falandysz, J. Organochlorine pesticides and polychlorinated biphenyls in surface layer of sandy sediment in Puck Bay. Bromat. Chem. Toksykol. 1992, 25, 387–390. (in Polish) 2160 Falandysz et al. 18. Falandysz, J.; Strandberg, B. Persistent organochlorine compounds in sludge and sediments from the Gdańsk region, Baltic Sea. Pol. J. Environ. Stud. 2004, 13, 133– 138. 19. Kawano, M.; Falandysz, J.; Brudnowska, B.; Wakimoto, T. Organochlorine residues in freshwater sediments in Poland. Organohalogen Compd. 1998, 39, 331– 335. 20. IFREMER.. Reseau National d’Observation de la qualite du Milieu Marin (RNO), 1998. www.fremer.fr 21. Koci, K.The trend of POP pollution in the Albanian Adriatic Coast. Case study of PCBs UNEP/IFCS (1992–1996) 1998, 101–106. 22. Albanis, T.A.; Danis, T.G.; Kouriga, M.K. Transportation of pesticides in estuaries of the Axios, Loudias and Aliakmon rivers (Thermaikos Gulf), Greece. Sci. Total Environ. 1994, 156, 11–19. 23. Albanis, T.A.; Danis, T.G.; Hela, G.D. Transportation of pesticides in estuaries of Louros and Arachthos rivers (Amvrakikos Gulf, N.W. Greece). Sci. Total Environ 1995, 171, 85–93. 24. Kannan, K.; Kober, J.L.; Khim, J.S.; Szymczyk, K.; Falandysz, J.; Giesy, J.P. Polychlorinated biphenyls, polycyclic aromatic hydrocarbons and alkylphenols in sediments from the Odra River and its tributaries, Poland. Toxicol. Environ. Chem. 2003, 85, 51–60. 25. Witt, G. Polycyclic aromatic hydrocarbons in water and sediment of the Baltic Sea. Mar. Pollut. Bull. 1995, 31, 237–248. 26. Norta, M.; Leskovsek, H.; Fagneli, J. Composition, distribution and sources of polycyclic aromatic hydrocarbons in sediments of the Gulf of Trieste. Mar. Pollut. Bull. 2001, 42, 36–44. 27. Olajire, A.A.; Altenburger, R.; Küster, E.; Brack, W. Chemical and ecotoxicological assessment of polycyclic aromatic hydrocarbon—contaminated sediments of the Niger Delta, Southern Nigeria. Sci. Total. Environ. 2005, 340, 123–136. 28. Bernner, B.A.; Gondon, G.E.; Wise, S.A. Mobile sources of atmospheric polycyclic aromatic hydrocarbons: a roadway tunnel study. Environ. Sci. Technol. 1989, 23, 1269– 1274. 29. Geschwend, P.M.; Hites, R.A. Fluxes of PAH to marine and lacustrine sediments in the northeastern USA. Geochim. Cosmochim. Acta 1981, 45, 2359–2367. 30. Colombo, J.C.; Pelletier, E.; Brochu, C.; Khalil, M.; Catoggio, J.A. Deteremination of hydrocarbons sources using n-alkanes and polycyclic aromatics distribution indexes. Case study: Rio de la Plata, Argentina. Environ. Sci. Technol. 1989, 23, 888–894. 31. Budziński, H.; Jones, J.; Bellocq, J.; Pierrad, C.; Garrigues, P. Evaluation of sedyment contamination by polycyclic aromatic hydrocarbons in the Gironde estuary. Mar. Chem. 1997, 58, 85–97. 32. Dahle, S.; Savinov, V.M.; Matishov, G.G.; Evenset, A.; Naes, K. Polycyclic aromatic hydrocarbons (PAHs) in bottom sediment of the Kara Sea Shelf, Gulf of Ob and Yenisei Bay. Sci. Total Environ. 2003, 306, 57–71. 33. Sicere, M.A.; Marty, J.C.; Saliot, A.; Aparicio, X.; Grimalt, J.; Albaiges, J. Aliphatic and aromatic hydrocarbons in different sized aerosols over the Mediterranean Sea: Occurrence and origin. Atmosph. Environ. 1987, 21, 2247–2259. 34. Institute for Environmental Chemistry Bremen. Analyses and Assessment of Sediment Samples from Bremen and Bremerhavens by Biological Effect Tests. Final Surface Sediment Contamination at the the Baltic Sea Coastal Region 2161 report 001.89.01 for the Senator for Construction and the Environment Bremen (in German), 1984. 35. Hoch, M. Organotin compounds in the environment—An overview. Appl. Geochem. 2001, 16, 719–743. 36. Albalat, A.; Potrykus, J.; Pempkowiak, J.; Porte, C. Assessment of organotin pollution along the Polish coast (Baltic Sea) by using mussels and fish as sentinel organisms. Chemosphere 2002, 47, 165–171. 37. Belfroid, A.C.; Purperhart, M.; Ariese, F. Organotin levels in seafood. Mar. Pollut. Bull. 2001, 40, 226–232. 38. Guruge, K.S.; Tanabe, S. Contamination by persistent organochlorines and butyltin compounds in the West Coast of Sri Lanka. Mar. Pollut. Bull. 2001, 42, 179–186. 39. De Mora, S.J.; Fowler, S.W.; Cassi, R.; Tolosa, I. Assessment of organotin contamination in marine sediments and biota from the Gulf and adjacent region. Mar. Pollut. Bull. 2003, 46, 410–409. 40. Ueno, D.; Inoue, S.; Takahashi, S.; Ikeda, K.; Tanaka, H.; Subramanian, A.N.; Fillmann, G.; Lam, P.K.; Zheng, J.; Muchtar, M.; Prudente, M.; Chung, K.; Tanabe, S. Global pollution monitoring of butyltin compounds using skipjack tuna as a bioindicator. Environm. Pollut. 2004, 127, 1–12. 41. Dowson, P.H.; Bubh, J.M.; Williams, T.P.; Lester, J.N. Persistence and degradation pathways of tributyltin in freshwater and estuarine sediments. Water Sci. Technol. 1993, 28, 133–137. 42. Landmeyer, J.E.; Tanner, T.L.; Watt, B.E. Biotransformation of tributyltin to tin in freshwater river-bed sediments contaminated by an organotin release. Environ. Sci. Technol. 2004, 38, 4106–4112. E. Butyltins in marine and 43. Szpunar, J.; Falandysz, J.; Schmitt, V.; Obrebska, freshwater sediments of Poland. Bull. Environ. Contam. Toxicol. 1997, 58, 859–864. 44. Kannan, K.; Falandysz, J. Butyltin residues in sediment, fish, fish-eating birds, harbour porpoise and human tissues from the Polish coast of the Baltic Sea. Mar. Pollut. Bull. 1997, 34, 203–207. 45. Falandysz, J.; Brzostowski, A.; Szpunar, J.; Rodriguez-Pereiro, I. Butyltins in sediments and three-spined stickleback (Gasterosteus aculleatus) from the marinas of the Gulf of Gdańsk, Baltic Sea. J. Environ. Sci. Health. 2002, A37, 353–363. 46. Senthilkumar, K.; Duda, C.A.; Villeneuve, D.L.; Kannan, K.; Falandysz, J.; Giesy, J.P. Butyltin compounds in sediment and fish from the Polish coast of the Baltic Sea. Environ. Sci. Poll. Res. 1999, 6, 200–206. 47. Skwarzec, B.; Bojanowski, R.; Bolałek, J. Rozmieszczenie pierwiastków chemicznych w wybranych basenach południowego Baltyku. Stud. Mat. Oceanolog. KBM PAN 1985, 48, 69–72. 48. Szefer, P.; Skwarzec, B. Distribution and possible sources of some elements in the sediments of the southern Balic. Mar. Chem. 1988, 23, 109–129. 49. Szefer, P.; Szefer, K.; Glasby, G.P.; Pempkowiak, J.; Kaliszan, R. Heavy-metal pollution in surfacial sediments from the Baltic Sea off Poland. J. Environ. Sci. Health 1996, A31, 2723–2754. 50. Szefer, P.; Kusak, A.; Szefer, K.; Glasby, G.P.; Jankowska, H.; Wołowicz, M.; Ali, A.A. Heavy-metal pollution in surficial sediments from the southern Baltic Sea off Poland. Appl. Geochem. 1998, 13, 293–304. 2162 Falandysz et al. 51. Länderarbeitsgemeinschaft Wasser (LAWA).Beurteilung der Wasserbeschaffenheit von Fließgewässern in der Bundesrepublik Deutschland–Chemische Gewässer-güteklassifikation; Kulturbuchverlag: Berlin, Germany, 1998. 52. Duft, M.; Tillmann, M.; Oehlmann, J. In Ecotoxicological sediment survey of large German rivers; et al., Ed.; Federal Environmental Agency: Berlin, Germany, 2003. (in German)
© Copyright 2025 Paperzz