Superfund Research Program
The Resilience of Low-Arsenic Aquifers and their Role in Reducing Human Exposure
Project Leader: Alexander F. van Geen
Co-Investigators: Benjamin C. Bostick, Ana Navas-Acien
Grant Number: P42ES010349
Funding Period: 2000-2021
News Items List
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Characterizing Arsenic Exposure in Public Water Supplies and Private Wells
Research Brief - August 2021
A recent NIEHS Superfund Research Program (SRP)-funded study revealed that while arsenic concentrations in community water systems (CWS) have decreased over time, certain populations are still vulnerable to elevated levels of arsenic.
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Clay Layers May Worsen Arsenic Contamination
Research Brief - July 2020
Layers of clay are widely thought to protect groundwater aquifers from above-ground contaminants. But according to a new NIEHS Superfund Research Program (SRP) study, these clay layers may play a role in increasing groundwater arsenic contamination.
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Inverting Soil Decreases Arsenic and Improves Rice Yields
SRP News Page - May 2019
By exchanging high-arsenic soil at the surface with deeper low-arsenic soil, researchers from the Columbia University Superfund Research Program (SRP) have demonstrated increased rice crop yields in Bangladesh. This approach, called soil inversion, increased rice yields 15 - 30 percent compared to plots that were not inverted. The team, led by Alexander van Geen, Ph.D., also reported that arsenic concentrations remained lower over four seasons of monitoring.
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SRP Grantee Moderates Smartphone Apps for Citizen Scientists Workshop
SRP News Page - November 2015
Smartphones are revolutionizing the collection and sharing of environmental data, but their potential as tools for citizen science is vastly under-utilized. To help promote and optimize use of mobile applications, the Earth Institute at Columbia University is hosting a series of workshops, which began October 13, looking at Smartphone Apps for Citizen Scientists.