Nutrient and pesticide contamination bias estimated from field blanks collected at surface-water sites in U.S. Geological Survey Water-Quality Networks, 2002–12
Medalie, Laura lmedalie@usgs.gov,Martin, Jeffrey D. jdmartin@usgs.gov. Nutrient and pesticide contamination bias estimated from field blanks collected at surface-water sites in U.S. Geological Survey Water-Quality Networks, 2002–12. 2017-01-01.