Center for Biological Diversity

Get Endocrine Disruptors Out of Our Water

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Endocrine disruptors are harming fish and wildlife throughout the nation, including endangered and threatened species such as the razorback sucker in Lake Mead, Nevada; the desert pupfish in Salton Trough, California; and the Santa Ana sucker in Southern California’s Santa Ana River.

A recent study of fish in the Potomac River in Maryland found that because of pollution by endocrine disruptors, more than 80 percent of fish surveyed were so-called intersex fish (with male and female reproductive parts) that cannot reproduce. The notorious endocrine disruptor atrazine, which has contaminated groundwater and drinking water over widespread areas, chemically castrates male frogs -- even at extremely low concentrations.

Help us get endocrine disruptors out of our waterways and ecosystems. The Center for Biological Diversity has petitioned the EPA to establish water-quality criteria for numerous endocrine-disrupting chemicals under the Clean Water Act. Send a message urging the EPA to regulate endocrine disruptors as pollutants and establish strong water quality criteria to keep them out of our drinking water and endangered species’ habitats.

Learn more about endocrine disruptors at

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Please submit comments by May 1, 2010.

California red-legged frog (c) Colin Brown.