TY  - RPRT
TI  - Nutrient and pesticide contamination bias estimated from field blanks collected at surface-water sites in U.S. Geological Survey Water-Quality Networks, 2002–12
AU  - Laura Medalie
AU  - Jeffrey D. Martin
PY  - 2017
DO  - 10.3133/sir20165129
UR  - https://pubs.usgs.gov/publication/sir20165129
ID  - sir20165129
ER  -