Synthetic estrogen experiment nearly wiped out minnow population in Ontario lake
A scientific experiment conducted in Ontario's Lake 260 exposed fathead minnows to trace amounts of 17α-ethynylestradiol, a synthetic estrogen. The exposure caused widespread reproductive failure among the fish, pushing the species close to local extinction. The study demonstrated that even minimal concentrations of chemical contaminants can severely disrupt aquatic ecosystems. Researchers have raised concerns that estrogen-containing wastewater discharged into natural water bodies poses a serious risk to aquatic biodiversity.
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