Superfund Research Program
Health Effects and Geochemistry of Arsenic
Center Director: Ana Navas-Acien
Grant Number: P42ES010349
Funding Period: 2000-2021
- 321 - First-of-its-Kind Arsenic Meta-Analysis Paves the Way for Future Data Integration -- Cardenas, Gamble
Release Date: 09/01/2021
Researchers from NIEHS Superfund Research Program (SRP) centers at the University of California (UC), Berkeley and Columbia University used advanced analysis techniques to combine data from populations in Chile and Bangladesh. The purpose was to detect common DNA methylation (DNAm) signatures associated with arsenic exposure.
- 320 - Characterizing Arsenic Exposure in Public Water Supplies and Private Wells -- Navas-Acien
Release Date: 08/04/2021
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.
- 307 - Clay Layers May Worsen Arsenic Contamination -- van Geen
Release Date: 07/08/2020
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.
- 273 - Susceptibility to Arsenic-Induced Skin Lesions Influenced by DNA Differences -- Ahsan
Release Date: 09/06/2017
New research shows that deletions or duplications of long stretches of DNA, also known as copy number variations (CNVs), that occur in several gene locations are associated with a higher risk of developing arsenic-induced skin lesions. Skin lesions are a hallmark of arsenic toxicity that appear relatively early with chronic arsenic exposure. This newly discovered link may help to explain why some people exposed to arsenic develop skin lesions and get sick while others exposed to the same levels do not.
- 261 - Importance of Young Dissolved Organic Carbon to the Release of Arsenic in Aquifers -- Bostick
Release Date: 09/07/2016
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.
- 242 - Assessing and Reducing Health Risks from Arsenic in Private Well Water -- Zheng
Release Date: 02/04/2015
We are at a crossroads when it comes to reducing the risk of adverse health outcomes from arsenic in private well water in the United States, according to Yan Zheng, Ph.D., professor at the City University of New York and community engagement leader at the Columbia University Superfund Research Program (CU SRP), and Joseph Ayotte, P.G., a U.S. Geological Survey hydrologist. They claim we have a better understanding of factors influencing arsenic occurrence in well water and its health effects, but little knowledge about what actions households with private wells have taken to reduce arsenic exposure and the reasons for taking those actions.
- 208 - A Flurry of Arsenic Findings -- Ahsan, Jackson, Lu
Release Date: 04/04/2012
New evidence about arsenic abounds in SRP studies published recently. The studies reveal that food is an unexpected source of arsenic exposure, demonstrate adverse health effects are from low levels of exposure, show the mechanisms behind some of arsenic's health effects, and suggest a strategy for reducing exposure from well water.
- 203 - Research Shows Arsenic Attaches to Sediments, Protects Human Health -- van Geen
Release Date: 11/02/2011
Scientists find arsenic can attach to sediments around deep wells, potentially reducing the risk of arsenic exposure for water users. The finding has implications for how arsenic-contaminated water sources are treated and managed.
- 193 - Accelerating Pump-and-Treat Remediation at Arsenic-contaminated Sites -- Chillrud, Stute, Mailloux
Release Date: 01/05/2011
Pumping contaminated groundwater to the surface to filter out toxins is time-consuming and expensive. A new process makes this method more efficient by adding chemicals to stir up toxins while the water still underground.
- 187 - Chronic Arsenic Exposure Linked to Increased Mortality Rate -- Graziano, Ahsan
Release Date: 07/07/2010
A unique study involving nearly 12,000 participants offers strong evidence of an increased risk of death among those who drink water from sources with elevated arsenic levels.
- 154 - Understanding the Underlying Mechanism of Asbestos Carcinogenesis -- Hei
Release Date: 10/03/2007
- 152 - Folic Acid Supplementation Lowers Blood Arsenic by Increasing Arsenic Methylation -- Gamble
Release Date: 08/01/2007
- 129 - Manganese Exposure via Drinking Water and Children's Intellectual Function -- Graziano
Release Date: 09/07/2005
- 126 - Clues to the Genotoxicity of Arsenic -- Hei
Release Date: 06/01/2005
- 120 - Arsenic Exposure via Drinking Water and Children's Intellectual Function -- Graziano
Release Date: 12/01/2004
- 115 - Low Levels of Arsenite May Serve as a Treatment for Melanoma -- Hei
Release Date: 07/08/2004
- 113 - Strategies for Quantitative and Rapid Measurements of Arsenic in Water -- van Geen, Zheng, Daunert
Release Date: 05/05/2004
- 98 - Arsenic Mobilization in Bangladesh Groundwater -- Zheng, van Geen, Stute
Release Date: 02/05/2003
- 78 - Role of Oxyradicals in Genotoxicity of Arsenic -- Hei
Release Date: 06/06/2001