In 1933 Milwaukee outbreak was a distribution. The Milwaukee was the
largest waterborne disease outbreak documented U.S. history.
Facts:
The chemical element Chlorine has the symbol Cl and atomic number
17.
On the operiodic table Chlorine is in the halogen group and it is the 2nd
lightest halogen gas after fluorine.
In its standard form chlorine is a yellow-green gas, but its common
compounds are usually colorless. Chlorine has a strong distinctive odor
such as the smell of household.
Free chlorine is rare on Earth. Chlorine combines with nearly all elements
to create chlorine compounds called chlorides, which are much more
common. There are over 2000 naturally occurring organic chlorine compounds.
The most common compound of chlorine has been known about since
ancient times, it is sodium chloride we know it better as 'common salt'.
Chlorine is the 3rd most abundant element in Earth's oceans (about 1.9%
of the mass of seawater is chloride ions) and the 21st most common
chemical element in the Earth's crust.
Chlorine's high oxidizing properties saw it used to purify water in the U.S
as early as 1918. Today chlorine and its various compounds are used in
most swimming pools throughout the world to keep them clean and in
many household cleaning products such as disinfectants and bleaches.
Challenge: Determine the lowest concentration of chlorine measured in parts per
million (ppm) that kills green algae.
Diagram:
Chart:
Vvvvbvvvbbbb