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The Role of Gases in an Arsenic Contaminated Aquifer

Arsenic (As) contamination of groundwater remains a problem for many of the river deltaic areas in South-East Asia; where concentrations regularly exceed the 10μ/L currently recommended by the Word Health Organization. The focus of this study, is to determine noble and reactive gases in groundwaters at a location where As mobilisation is active, to constrain the sites hydrology in such a highly reducing environment. The small village of Van Phuc, Vietnam, presents an ideal opportunity for such research as is it well studied and accessible, however As dynamics here are still not well understood.