Glyphosate in soils and water

In a massive study of soil and water samples from across the US, researchers frequently found low levels of glyphosate and its byproduct aminomethylphosphonic acid (AMPA). The concentrations are below levels considered harmful to humans and wildlife, but little information is available on possible effects of chronic low level concentrations of herbicides or pesticides.  In 2007, 180-185 million pounds of glyphosate were used in agriculture in the US .

W.A. Battaglin, M.T. Meyer, K.M. Kuivila, J.E. Dietze. 2014. Glyphosate and its degradation product AMPA occur frequently and widely in U.S. soils, surface water, groundwater, and precipitation. Journal of the American Water Resources Association, online 1 April

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