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Scientific Investigations Report 2011-5082

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Occurrence and Distribution of Pesticides in Surface Waters of the Hood River Basin, Oregon, 1999–2009

Conversion Factors and Datums

Multiply By To obtain
inch (in.) 2.54 centimeter (cm)
inch (in.) 25.4 millimeter (mm)
foot (ft) 0.3048 meter (m)
mile (mi) 1.609 kilometer (km)
square mile (mi2) 2.590 square kilometer (km2)

Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83).

Concentrations of chemical constituents in water are given either in milligrams per liter (mg/L, approximately equivalent to parts per million) or micrograms per liter (µg/L, approximately equivalent to parts per billion).

First posted June 17, 2011

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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