Understand the impact of sediments re-suspension by
flooding events in rivers and estuaries
Tullus Bergmann
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Significance: The rise in climate change effects will increase the
occurrences of flooding events. In the UK, the legacy of contaminated
sediments in rivers by abandoned mines is problematic, once the
sediments re-suspended and transported by flooding events can impact
downstream areas. Understand the impacts are crucial to support decision
makers in managing risks.
Assess the bioavailability of metals after sediment resuspension by flooding.
Assess bioaccumulation of metals in column water
organisms after the flooding event.
Assess variations of bioavailability and bioaccumulation
of metals in an estuarine environment
Environmental impacts of contaminated sediments re-suspension by flooding events. A
review.
Impacts of contaminated sediments re-suspension and transport during a severe
flooding event.
• The disturbance of sediments can
weak the bound between
sediment particles and metals
easing the release of metals to the
column water.
• Estuarine waters can induce the
release of metals from sediment
particles.
• The rise in solubility due to salinity
in estuarine waters will improve
the capacity of uptake by
organisms.