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Alexander F. Van-Geen

Lamont Research Professor in the Lamont-Doherty Earth Observatory
Department: 
Earth and Environmental Sciences, Applied Physics and Applied Mathematics, Earth Institute, Lamont-Doherty Earth Observatory
Office: 
131 Comer, 61 Route 9W - PO Box 1000, Palisades NY 10964-8000 US
Email: 
avangeen@ldeo.columbia.edu
Phone: 
(845) 365-8644
Fax: 
(845) 365-8155
Biography

Geochemical cycling of trace elements in natural and perturbed environments, particularly redox-sensitive processes affecting metals and metalloids. Applications to mine tailings, coastal sediment, estuaries, and groundwater, as well reconstructions of past climate change in nearshore environments. More recent interest in the bridging of disciplines, including the health and social sciences, to address multi-faceted environmental problems.

Some of my projects include:

  • Reconstruction of climate change along the west of coast of the Americas
  • Geochemistry of cadmium and iron in coastal upwelling systems
  • Mitigation of groundwater arsenic problem in Bangladesh
Research & Other Works
Article
Increase in Diarrheal Disease Associated with Arsenic Mitigation in Bangladesh
Article
A cross-sectional study of well water arsenic and child IQ in Maine schoolchildren
Article
Retardation of arsenic transport through a Pleistocene aquifer
Article
Impact on arsenic exposure of a growing proportion of untested wells in Bangladesh
Article
A cluster-based randomized controlled trial promoting community participation in arsenic mitigation efforts in Bangladesh
Article
Impact of tubewell access and tubewell depth on childhood diarrhea in Matlab, Bangladesh
Article
Comparison of dissolved and particulate arsenic distributions in shallow aquifers of Chakdaha, India, and Araihazar, Bangladesh
Article
Chronic Arsenic Exposure and Blood Glutathione and Glutathione Disulfide Concentrations in Bangladeshi Adults
Article
Fecal Contamination of Shallow Tubewells in Bangladesh Inversely Related to Arsenic
Article
Decoupling of As and Fe release to Bangladesh groundwater under reducing conditions. Part I: Evidence from sediment profiles
Report
Integrated Reconnaissance of the Physical and Biogeochemical Characteristics of Jamaica Bay
 
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