Ultra-Fine Coatings on Sediment Grains Influence Nitrate and Sulfate Storage in Soil

The U.S. Geological Survey conducted new research studying the microscopic layer of minerals on tiny sediment grains, finding that the mineral composition of these coatings on sediment grains in the unsaturated zone can have a substantial effect on the retention of nitrate and sulfate, an important discovery for evaluating the long-term effects of agriculture on water quality.

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