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What kind of pollution is in the rainfall runoff?

April 26, 2017pollution rainfall Runoff

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What kind of pollution is in the rainfall runoff?

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The pollution depends on what the rainfall runoff is running off from. Nearly all runoff contains silt and soil as a result of erosion. Runoff from agricultural lands and our lawns often contain fertilizer and herbicides. Runoff from streets and highways may contain oil and grease plus heavy metals such as lead from gasoline exhaust emissions, selenium from tires, phosphorus and several others from a variety of sources.