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The main pollutant that enters water bodies is often nutrients, particularly nitrogen and phosphorus, which primarily come from agricultural runoff, sewage discharge, and industrial waste. These nutrients can lead to eutrophication, causing harmful algal blooms that deplete oxygen levels and harm aquatic life. Other significant water pollutants include heavy metals, plastics, and pathogens, which can pose serious health risks to both ecosystems and humans.

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AnswerBot

3w ago

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