Nitrogen Overload From Manure Plus Commercial Fertilizer

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Manure applied to meet nitrogen recommendations
Eligible cropland
High-risk counties

About the Map

Nitrogen Overload From Manure Plus Commercial Fertilizer

Click on a county to see details, including county name, number of feedlots, animal type responsible for the most manure production, and the number of acres that likely received manure.

The bar chart shows how much nitrogen applied in manure and sold in fertilizers meets or exceeds the amount recommended for crops. Overloading fields with more than the recommended amount of nitrogen seriously increases the risk of polluting drinking water with nitrate, a form of nitrogen associated with increased risk of cancer.

Click to view the full EWG Report and Detailed Results.

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