Abstract

Aims (1) Identify sources (geologic, point-source or regional-source pollution) of metals in soils, vegetation and groundwater of the Northeastern US using: (a) Pb isotopes (b) Elemental ratios of Cd, Ni, Cr, As, Cu and Zn (2) Establish metal mobility rates in terrestrial ecosystems utilizing greater than 100 years of atmospheric deposition records and evaluate potential release rates of metals into surface water, aquatic ecosystems and groundwater (a) Determine flushing times of Pb stored in the forest floor and other ecosystem compartments through the use of Pb isotopses (b) Determine flushing times of Pb, Cd, Cr, As, Ni, Cu and Zn using carbon-metal ratios and mass balance (3) Assess Pb, Cd, Cr, As, Ni, Cu and Zn concentrations in groundwater and surface water and identify the range of present human exposures possible for individual metals and for combinations of metals. (4) Combine the results of aims 1, 2 and 3 to develop scenarios for potential future human exposure to individual and combinations of metals in the Northeastern US.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Institute of Environmental Health Sciences (NIEHS)
Type
Hazardous Substances Basic Research Grants Program (NIEHS) (P42)
Project #
5P42ES007373-02
Application #
5211376
Study Section
Project Start
Project End
Budget Start
Budget End
Support Year
2
Fiscal Year
1996
Total Cost
Indirect Cost

  Publications

Smith, T Jarrod; Sondermann, Holger; O'Toole, George A (2018) Co-opting the Lap System of Pseudomonas fluorescens To Reversibly Customize Bacterial Cell Surfaces. ACS Synth Biol 7:2612-2617
Wang, Chengcheng; Na, GunNam; Bermejo, Eduardo Sanchez et al. (2018) Dissecting the components controlling root-to-shoot arsenic translocation in Arabidopsis thaliana. New Phytol 217:206-218
White, Alexandra J; O'Brien, Katie M; Jackson, Brian P et al. (2018) Urine and toenail cadmium levels in pregnant women: A reliability study. Environ Int 118:86-91
Hsu-Kim, Heileen; Eckley, Chris S; Achá, Dario et al. (2018) Challenges and opportunities for managing aquatic mercury pollution in altered landscapes. Ambio 47:141-169
Taylor, V F; Buckman, K L; Seelen, E A et al. (2018) Organic carbon content drives methylmercury levels in the water column and in estuarine food webs across latitudes in the Northeast United States. Environ Pollut 246:639-649
Shi, Xiangming; Mason, Robert P; Charette, Matthew A et al. (2018) Mercury flux from salt marsh sediments: Insights from a comparison between 224Ra/228Th disequilibrium and core incubation methods. Geochim Cosmochim Acta 222:569-583
Andrew, Angeline S; Chen, Celia Y; Caller, Tracie A et al. (2018) Toenail mercury Levels are associated with amyotrophic lateral sclerosis risk. Muscle Nerve :
Eagles-Smith, Collin A; Silbergeld, Ellen K; Basu, Niladri et al. (2018) Modulators of mercury risk to wildlife and humans in the context of rapid global change. Ambio 47:170-197
Obrist, Daniel; Kirk, Jane L; Zhang, Lei et al. (2018) A review of global environmental mercury processes in response to human and natural perturbations: Changes of emissions, climate, and land use. Ambio 47:116-140
Farzan, Shohreh F; Howe, Caitlin G; Chen, Yu et al. (2018) Prenatal lead exposure and elevated blood pressure in children. Environ Int 121:1289-1296

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