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