Detailed knowledge of groundwater flow is essential for understanding geochemical processes in the subsurface. Identification of recharge and discharge areas and mechanisms, as well as flow lines are essential for delineating trends in geochemical evolution, including changes in As concentrations, and to quantify reaction rates. Hydrogeology Core D will provide the tools and expertise for collection and analysis of a broad range of hydrogeological data in the US and in Bangladesh under Projects 4, 5, and 6 and the Research Translation Core. The following types of data will be obtained and interpreted: high-precision position and elevation by differential GPS;surface permeability by coring and frequency EM conductivity, resistivity/SIP surveys also to characterize the subsurface, aquifer stratigraphy from drill cuttings, core samples, and down hole geophysical logging;determination of hydraulic properties including water levels, conductivity, storativity, and porosity;groundwater dating and pathway tracing from SF6, 3H/3He,180, 2H, and Br. Field activities supported under Core D include the installation of multilevel wells equipped with pressure loggers, deploying a Geoprobe system and a new freeze-shoe coring device, as well as cross bore hole resistivity and induced polarization surveys. The Core will support in situ forced gradient experiments, with a focus on characterizing the zone of injections and tracking injected fluids with geophysical methods and tracers. Laboratory activities include sample preparation systems for isotopic analyses, gas chromatographs, and noble gas mass spectrometers. Water isotope (180, 2H) analyses will be performed by a commercial laboratory. Tracer data will also be used to derive groundwater residence times for a range of time scales (months to 10,000s of years), to identify recharge and discharge areas and mechanisms and to track groundwater mixing in the aquifers. Modeling activities supported under Core D include three-dimensional flow modeling using hydraulic and tracer data as calibration targets and reactive transport simulations for As and other relevant aquifer constituents.

Agency
National Institute of Health (NIH)
Institute
National Institute of Environmental Health Sciences (NIEHS)
Type
Hazardous Substances Basic Research Grants Program (NIEHS) (P42)
Project #
5P42ES010349-12
Application #
8461593
Study Section
Special Emphasis Panel (ZES1-JAB-J)
Project Start
Project End
Budget Start
2013-04-01
Budget End
2014-03-31
Support Year
12
Fiscal Year
2013
Total Cost
$182,367
Indirect Cost
$68,591
Name
Columbia University (N.Y.)
Department
Type
DUNS #
621889815
City
New York
State
NY
Country
United States
Zip Code
10032
Sun, Jing; Mailloux, Brian J; Chillrud, Steven N et al. (2018) Simultaneously Quantifying Ferrihydrite and Goethite in Natural Sediments Using the Method of Standard Additions with X-ray Absorption Spectroscopy. Chem Geol 476:248-259
Argos, Maria; Tong, Lin; Roy, Shantanu et al. (2018) Screening for gene-environment (G×E) interaction using omics data from exposed individuals: an application to gene-arsenic interaction. Mamm Genome 29:101-111
Wu, Fen; Chi, Liang; Ru, Hongyu et al. (2018) Arsenic Exposure from Drinking Water and Urinary Metabolomics: Associations and Long-Term Reproducibility in Bangladesh Adults. Environ Health Perspect 126:017005
Sanchez, Tiffany R; Powers, Martha; Perzanowski, Matthew et al. (2018) A Meta-analysis of Arsenic Exposure and Lung Function: Is There Evidence of Restrictive or Obstructive Lung Disease? Curr Environ Health Rep 5:244-254
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
Sanchez, Tiffany R; Slavkovich, Vesna; LoIacono, Nancy et al. (2018) Urinary metals and metal mixtures in Bangladesh: Exploring environmental sources in the Health Effects of Arsenic Longitudinal Study (HEALS). Environ Int 121:852-860
Spratlen, Miranda J; Grau-Perez, Maria; Umans, Jason G et al. (2018) Arsenic, one carbon metabolism and diabetes-related outcomes in the Strong Heart Family Study. Environ Int 121:728-740
Balakrishnan, Poojitha; Navas-Acien, Ana; Haack, Karin et al. (2018) Arsenic-gene interactions and beta-cell function in the Strong Heart Family Study. Toxicol Appl Pharmacol 348:123-129
Oliver-Williams, Clare; Howard, Annie Green; Navas-Acien, Ana et al. (2018) Cadmium body burden, hypertension, and changes in blood pressure over time: results from a prospective cohort study in American Indians. J Am Soc Hypertens 12:426-437.e9
Jones, Miranda R; Tellez-Plaza, Maria; Vaidya, Dhananjay et al. (2018) Ethnic, geographic and dietary differences in arsenic exposure in the multi-ethnic study of atherosclerosis (MESA). J Expo Sci Environ Epidemiol :

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