A total of 2,541 constituents were evaluated and prioritized for national- and regional-scale ambient monitoring of water and sediment in the United States. This prioritization was done by the U.S. Geological Survey (USGS) in preparation for the upcoming
Olsen, Lisa D. ldolsen@usgs.gov,Valder, Joshua F. jvalder@usgs.gov,Carter, Janet M. jmcarter@usgs.gov,et al. Prioritization of constituents for national- and regional-scale ambient monitoring of water and sediment in the United States. 2013-01-01.