TY - RPRT TI - Trends in pesticide concentrations in urban streams in the United States, 1992-2008 AU - Karen R. Ryberg AU - Aldo V. Vecchia AU - Jeffrey D. Martin AU - Robert J. Gilliom PY - 2010 DO - 10.3133/sir20105139 UR - https://pubs.usgs.gov/publication/sir20105139 ID - sir20105139 ER -