Trends in neonicotinoid pesticide residues in food and water in the United States, 1999-2015.

However, we found a decreasing trend in detection frequency for imidacloprid from an overall peak of ~ 20% during 2004–2007 to less than 5% in 2014 among domestic commodities.

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In our analysis, we observed an increasing trend in detection frequency of imidacloprid from approximately 2 % in 2004 to 36.7% in 2011 for untreated water and < 1% in 2002 to 29.7% in 2011 for finished drinking water.

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