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Fish Devastated By Sex-changing Chemicals In Municipal Wastewater

Achilles Tang

By Achilles Tang,
in General Reefkeeping_

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Achilles Tang

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While most people understand the dangers of flushing toxic chemicals into the ecosystem through municipal sewer systems, one potentially devastating threat to wild fish populations comes from an unlikely source: estrogen. After an exhaustive seven-year research effort, Canadian biologists found that miniscule amounts of estrogen present in municipal wastewater discharges can decimate wild fish populations living downstream.

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