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Researchers study pesticide pathways into the atmosphere
Date:7/12/2011

how readily atrazine and metolachlor volatilized into the air, a key factor that had not been included in previous models of pesticide volatilization. When soils were dry and air temperatures increased, there was no increase in herbicide volatilization, but herbicide volatilization increased significantly when temperatures rose and soils were wet.

Most surprising was that throughout the study, herbicide volatilization losses were significantly larger than surface runoff. When averaged over the two herbicides, loss by volatilization was about 25 times larger than losses from surface runoff.


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Contact: Ann Perry
Ann.Perry@ars.usda.gov
301-504-1628
United States Department of Agriculture - Research, Education and Economics
Source:Eurekalert

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