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Potomac tops conservation group's list of endangered rivers
The Potomac River is much healthier today than it was 40 years ago, when its chemical-laced, sewage-laden waters helped inspire the 1972 Clean Water Act. But the Washington waterway still has a long way to go, as suggested ...
May 21, 2012 |
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Estrogen linked to lowered immunity in fish
Exposure to estrogen reduces production of immune-related proteins in fish. This suggests that certain compounds, known as endocrine disruptors, may make fish more susceptible to disease.
Jun 03, 2009 |
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