TY - RPRT TI - Effect of censoring trace-level water-quality data on trend-detection capability AU - R. J. Gilliom AU - R.M. Hirsch AU - E.J. Gilroy PY - 2002 DO - 10.1021/es00125a009 UR - https://pubs.usgs.gov/publication/70013378 ID - 70013378 ER -