TY - RPRT TI - Degradation of chloroacetanilide herbicides: The prevalence of sulfonic and oxanilic acid metabolites in Iowa groundwaters and surface waters AU - Stephen J. Kalkhoff AU - Dana W. Kolpin AU - E.M. Thurman AU - I. Ferrer AU - D. Barcelo PY - 1998 DO - 10.1021/es971138t UR - https://pubs.usgs.gov/publication/70020355 ID - 70020355 ER -