Pesticides in Streams of the United States--Initial Results from the National Water-Quality Assessment Program

By Steven J. Larson, Robert J. Gilliom, and Paul D. Capel

U.S. GEOLOGICAL SURVEY
Water-Resources Investigations Report 98-4222
Sacramento, California, 1999

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Figure 12. Distribution of the number of compounds detected at each site for each of the three types of sites. Detections at any concentration are included for all samples collected at all 58 sites during 1993-95. (See figure 5A and associated text for an explanation of boxplots.)

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