USGS Scientific Investigations Report 2009–5119Reconnaissance of Pharmaceutical Chemicals in  Urban Streams of the Tualatin River Basin,  Oregon, 2002

Scientific Investigations Report 2009–5119

Reconnaissance of Pharmaceutical Chemicals in Urban Streams of the Tualatin River Basin, Oregon, 2002

Figure - refer to figure caption for alternative text description

Figure 4. Boxplot showing concentrations of pharmaceuticals and metabolites detected in stream and river samples in this study and instream concentrations from a 1999–2000 national study.

Report PDF (1.5 MB)

For additional information contact:
Director, Oregon Water Science Center
U.S. Geological Survey
2130 SW 5th Avenue
Portland, Oregon 97201
http://or.water.usgs.gov

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