Samuel N. Luoma
Senior Research Hydrologist
Lead Scientist, CALFED Bay-Delta Program

B.S., Montana State University, Zoology
M.S., Montana State University, Zoology, "Hibernation in the Western Jumping Mouse, Zapus princeps".
Ph.D., University of Hawaii, Marine Biology, "Mercury cycling in a small Hawaiian estuary"

snluoma@usgs.gov
650-329-4481

Research Interests
Dr. Samuel N. Luoma is a Senior Research Hydrologist with the US Geological Survey. Since 2000 he has served as the first Lead Scientist for the CALFED Bay-Delta program, an innovative program of environmental restoration over 40% of California's watershed, and water management issues for 60% of California's water supply. His specific research interests are in the bioavailability and effects of pollutants in aquatic environments and developing better ways to merge environmental science and policy. He is an author on more than 160 peer-reviewed publications. He wrote the textbook, Introduction to Environmental Issues, in 1984; is an editorial advisor for the highly respected Marine Ecology Progress Series and is editor of Marine Environmental Research. He is a Fellow in the American Association for the Advancement of Science and was awarded the U. S. Department of Interior's Distinguished Service Award, the University of California at Davis Wendell Kilgore award for environmental toxicology and the Soc. Environmental Toxicology and Chemistry's Government Service Award. He has served nationally and internationally as an expert or advisor on technical issues and issues at the interface of science and environmental management, including sediment quality criteria (USEPA SAB Sub-committee), Bioavailability of Contaminants in Soils and Sediments (Canadian National Research Council, 1987; US National Research Council sub-committee, 2000-2), mining issues (UNESCO, Global Mining Initiative), selenium issues, environmental monitoring, and metal effects.

Selected publications
Luoma, S. N. 1978. Detection of trace contaminant effects in aquatic ecosystems. J. Fish. Res. Bd. Can., 34:436-439.

Luoma S. N. and Bryan, G. W., 1978. Factors controlling availability of sediment-bound lead to the estuarine bivalve Scorbicularia plana. J. Mar. Biol. Assoc., UK, 58:793-802.

Luoma S. N., 1983. Bioavailability of trace metals to aquatic organisms--A Review. Sci. Total Environ., 28:1-22.

Nichols, F. H., Cloern, J. E., Luoma, S. N. and Peterson, D. H., 1986. The modification of an estuary. Science, 231:567-573.

Luoma, S. N., 1989. Can we determine the biological availability of sediment-bound trace elements? Hydrobiologia, v. 176/177: 379-396.

Moore, J. N., and Luoma, S. N., 1990. Hazardous wastes from large scale metal extraction: A case study. Environ. Sci. Technol., 24:1279-1285.

Luoma, S. N., Johns, C., Fisher, N. S., Steinberg, N. A., Oremland, R. S., and Reinfelder, J. 1992. Determination of selenium bioavailability to a benthic bivalve from particulate and solute pathways. Environ. Sci. Technol., 26:485-491.

Luoma, S. N. 1995. Prediction of Metal Toxicity in Nature from Bioassays: Limitations and Research Needs in Metal Speciation and Bioavailability in Aquatic Systems, A. Tessier and D. Turner, eds. p. 609-646, John Wiley and Sons, Ltd., London.

Luoma, S. N. 1996. The developing framework of marine ecotoxicology: Pollutants as a variable in marine ecosystems? J. Exptl. Mar. Biol. Ecol., 200: 29-55.

Luoma, S. N., and Fisher, N., 1997. Uncertainties in assessing contaminant exposure from sediments: Bioavailability. p. 211-239. In Ecological Risk Assessments of Contaminated Sediments, C. Ingersoll, T. Dillon, G. Biddinger, eds. SETAC Press, Pensacola, FL.

Luoma, S.N., van Geen, A., Lee, B-G., and Cloern, J.E. 1998. Metal uptake by phytoplankton during a bloom in south San Francisco Bay: Implications for metal cycling in estuaries. Limnology & Oceanography, 43:1007-1016.

van Geen, A., and Luoma S. N. (eds) 1999. The impact of human activities on sediments of San Francisco Bay. Mar. Chem. 64:1-127.

Lee, B.-G., Griscom, S. B., Lee, J-S., Choi, H. J., Koh, C-H., Luoma, S. N., and Fisher, N. S. 2000. Influence of dietary uptake and reactive sulfides on metal bioavailability from aquatic sediments. Science, 287: 282-284.

Luoma, S.N., W Clements, T DeWitt, J Gerritsen, A Hatch, P Jepson, T Reynoldson, and R Thom. 2001. Role of Environmental Variability in Evaluating Stressor Effects. p. 141-176 In DJ Baird & GA Burton, eds. Ecological Variability: Separating Natural from Anthropogenic Causes of Ecosystem Impairment. SETAC Press, Pensacola, FL.

Luoma SN, Brown SS, Foster WG, Leckie JO, Teisl MF, Thomas JK, and Williams-Fleetwood, SO. 2002. Chapter4: Characteristics and Implications. P. 67 - 103 In RT DiGiulio and WH Benson, eds. Interconnections between Human Health and Ecological Integrity. SETAC Press, Pensacola, FL.