What is the dirtiest river in the US?

The Mississippi River This once pristine waterway is perhaps the most polluted in the United States. Part of the problem stems from agriculture. The Mississippi River traverses much of America's heartland, drawing no end of runoff from factory farms. Animal waste isn't the only problem.



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Pittsburgh's combined stormwater and sewer system overflows when it rains a lot, and that sewage seeps into the Ohio River, creating toxic algae blooms that are harmful to life in the river and to people.

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According to The Guardian, the Citarum River in Indonesia is so polluted that before you see it, you will smell it.

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The Mississippi River However, the river has also been heavily impacted by pollution from agricultural runoff, industrial discharges, and discharge of sewage. Perhaps the river which is genuinely the most polluted in the US is the mighty Mississippi.

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The Sarno, known as Sarnus to the Romans, is a stream that passes through Pompeii to the south of the Italian city of Naples. It is considered the most polluted river in Europe.

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The Thames is considered to be the cleanest river in the world that flows through a major city. The Thames is home to 125 species of fish and more than 400 invertebrates.

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Stretches of the Mississippi River within the park corridor exceed water quality standards for mercury, bacteria, sediment, PCBs (polychlorinated biphenyl), and nutrients. Unfortunately, these impairments can make the water unsuitable for fishing, swimming, and drinking.

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Surrounded by water, New York City has a number of official swimming beaches that are easy to get to. Coney Island and Staten Island ocean beaches are old favourites with locals. These beaches are some of the first places where new Americans had the chance to dip their feet in the water.

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