U.S. GEOLOGICAL SURVEY TOXIC SUBSTANCES HYDROLOGY PROGRAM--Proceedings of the Technical Meeting, Charleston, South Carolina, March 8-12, 1999

U.S. GEOLOGICAL SURVEY Water-Resources Investigations Report 99-4018B Volume 2 of 3

SECTION B-Mercury Contamination of Aquatic Ecosystems, page 145

A national pilot study of mercury contamination of aquatic ecosystems along multiple gradients by D.P. Krabbenhoft, J.G. Wiener, W.G. Brumbaugh, M.L. Olson, J.F. DeWild, and T.J. Sabin, page 147

Methylmercury in aquatic food webs: Consequences and management challenges by J.G. Wiener and D.P. Krabbenhoft, page 161

Mercury contamination: A nationwide threat to our aquatic resources, and a proposed research agenda for the USGS by D.P. Krabbenhoft, and J.G. Wiener, page 171

Mercury contamination from hydraulic placer-gold mining in the Dutch Flat mining district, California by M.P. Hunerlach, J.J. Rytuba, and C.N. Alpers, page 179

Techniques for the collection and species-specific analysis of low levels of mercury in water, sediment, and biota by M.L. Olson and J.F. DeWild, page 191