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Pesticide concentrations decreasing
Date:10/20/2008

ounds studied, only six were detected in ground water from at least 10 wells during both of those sample periods. Concentrations of these compounds generally were less than 0.12 parts per billion, or more than 10 times lower than applicable USEPA drinking-water standards.

Characterization of trends in pesticide occurrence and concentrations through time is important in determining how quickly ground-water systems respond to changes in chemical use and in identifying compounds that may pose a threat to water quality before large-scale problems occur. Continuing research is planned to track and understand changes in both ground and surface-water quality across the United States.


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Contact: Sara Uttech
suttech@agronomy.org
608-268-4948
American Society of Agronomy
Source:Eurekalert

Page: 1 2

Related biology news :

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4. Alternatives to ozone-depleting pesticide studied
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9. Nitrate concentrations of ground water increasing in many areas of the United States
10. Scientists develop a fast system to detect metal concentrations in iron and steel industry workers
11. International team shows mercury concentrations in fish respond quickly to increased deposition
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