Audio by Alexander Van Geen in News Archive

Groundwater Pollution

Alexander van Geen, a geochemist at Columbia University's Lamont-Doherty Earth Observatory, joins Late City Edition producer Erica Getto to explore how naturally occurring arsenic pollutes wells worldwide. Tune in to hear van Geen discuss his recent Nature study on arsenic levels in South Asia aquifers, water contamination’s health consequences, and his current education efforts.