Superfund Research Program
Arsenic, Iron, Sulfur and Organic Carbon Speciation and Their Impact on Groundwater Arsenic
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Importance of Young Dissolved Organic Carbon to the Release of Arsenic in Aquifers
Research Brief - September 2016
Carbon from relatively new sources of organic material on the surface, or young carbon, can stimulate microbial communities deep in aquifers, leading to the release of arsenic into water, according to a recent field study by Columbia University Superfund Research Program (SRP) Center researchers. The researchers found that near-surface sources of organic carbon are central in microbial metabolism, even in aquifers that are far below and separated from the land where carbon is derived.