From chemical oceanography and paleoceanography, my interests have turned to the environment and human health. One theme that runs through my on-going projects is that patterns of contamination, e.g. arsenic (As) in well water of across South Asia or lead (Pb) in soil contaminated with mine tailings in the Peruvian Andes, are spatially highly variable. This complicates prediction but also creates opportunities for mitigation once the local distribution of a contaminant has been mapped. My students and I promote more widespread deployment of field kits for testing water and soil, developing new kits when necessary, in order to identify and reduce child exposure to toxins. I particularly enjoy working in teams of earth, public health, and social scientist to increase access to uncontaminated water or reduce the impact of contaminated soil.
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