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 #
5P42ES007373-04
Application #
6271283
Study Section
Project Start
1998-04-01
Project End
1999-03-31
Budget Start
1997-10-01
Budget End
1998-09-30
Support Year
4
Fiscal Year
1998
Total Cost
Indirect Cost

  Institution

Name
Dartmouth College
Department
Type
DUNS #
041027822
City
Hanover
State
NH
Country
United States
Zip Code
03755

  Publications

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
Deyssenroth, Maya A; Gennings, Chris; Liu, Shelley H et al. (2018) Intrauterine multi-metal exposure is associated with reduced fetal growth through modulation of the placental gene network. Environ Int 120:373-381
Chen, Celia Y; Driscoll, Charles T; Eagles-Smith, Collin A et al. (2018) A Critical Time for Mercury Science to Inform Global Policy. Environ Sci Technol 52:9556-9561
Punshon, Tracy; Carey, Anne-Marie; Ricachenevsky, Felipe Klein et al. (2018) Elemental distribution in developing rice grains and the effect of flag-leaf arsenate exposure. Environ Exp Bot 149:51-58
Liu, Maodian; Zhang, Qianru; Luo, Yao et al. (2018) Impact of Water-Induced Soil Erosion on the Terrestrial Transport and Atmospheric Emission of Mercury in China. Environ Sci Technol 52:6945-6956

Showing the most recent 10 out of 372 publications