Water Quality. Water quality problems in developing countries. Evidence from the WHO: In 2003, an estimated 1.6 million deaths worldwide were caused by unsafe drinking water and sanitation 90% of these deaths were among children under age five
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The Cuyahoga River Fire in 1969
Cryptosporidium contamination in Milwaukee in 1993
Narrowing the focus:
Types of surface water pollution:
Regulation depends on designated uses of surface water:
The effect that a particular effluent has on water quality depends on a number of factors such as:
A perfect water pollution control policy would have to take all these factors into account. Since this is impractical, actual policies involve compromises.
EPA – Envirofacts
WDNR - WPDES Permit Program