title: Some considerations in applying background concentrations to ground water studies.
authors.affiliation: Illinois State Water Survey, 2204 Griffith Drive, Champaign, IL 61820, USA. kelly@sws.uiuc.edu
authors.forename: W R
authors.initials: WR
authors.lastname: Kelly
authors.forename: S V
authors.initials: SV
authors.lastname: Panno
mesh_terms: D004782:Environmental Health; D004784:Environmental Monitoring; D005843:Geography; D012106:Research; D013672:Technology; D014874:Water Pollutants, Chemical / Q000032:analysis; D014881:Water Supply / Q000032:analysis*
chemical_list: D014874:Water Pollutants, Chemical