TY - RPRT TI - Chemical loading into surface water along a hydrological, biogeochemical, and land use gradient: A holistic watershed approach AU - L. B. Barber AU - S.F. Murphy AU - P. L. Verplanck AU - Mark W. Sandstrom AU - Howard E. Taylor AU - E. T. Furlong PY - 2005 DO - 10.1021/es051270q UR - https://pubs.usgs.gov/publication/70030911 ID - 70030911 ER -