Superfund Research Program
- 345 - Modified Iron Particles Could Improve Bioremediation of PFAS -- Jaffe
Release Date: 09/06/2023
Iron particles coated in a nontoxic material may enhance PFAS degradation by a certain bacterium, according to researchers funded by the NIEHS Superfund Research Program. The study could inform bioremediation efforts that harness the microbe, known as Acidimicrobium Strain A6, for cleaning up contaminated soil, sediments, and aquifers.
- 339 - New Model Estimates PFAS Exposures From Contaminated Drinking Water -- Chiu
Release Date: 03/01/2023
Researchers partially funded by the NIEHS Superfund Research Program (SRP) developed a model to estimate individual exposure to four per- and polyfluoroalkyl substances (PFAS) commonly found in drinking water. The model integrates published data from multiple studies on PFAS levels in human blood along with measured PFAS concentrations in drinking water. Tools for estimating PFAS exposure from contaminated drinking water can inform public health risk assessments and advisories.
- 334 - Disentangling Relationships Between Arsenic and the Gut Microbiome -- Fry, Lu, Bradham
Release Date: 10/06/2022
Using an innovative method to simulate the gastrointestinal (GI) system, an NIEHS Superfund Research Program (SRP)-funded study revealed the interplay between arsenic exposure and the gut microbiome. The scientists assessed how arsenic alters the microbiome and how much arsenic can be dissolved into the bloodstream after being broken down by the gut, also known as bioaccessibility.
- 332 - Improving How Microbes Break Down PFAS -- Men
Release Date: 08/03/2022
NIEHS Superfund Research Program (SRP) grantees demonstrated a method to break down per- and polyfluoroalkyl substances (PFAS) into smaller, non-toxic molecules. Led by Yujie Men, Ph.D., of the University of California, Riverside, the team also showed that some types of PFAS can be more easily degraded than others.
- 328 - Sampling Device May Predict Methylmercury Accumulation in Wetlands -- Hsu-Kim
Release Date: 04/06/2022
NIEHS Superfund Research Program (SRP)-funded researchers, led by Heileen Hsu-Kim, Ph.D., of the Duke University SRP Center, showed that a small plastic sampling device can efficiently predict the potential for methylmercury — an environmental contaminant — to form in freshwater wetlands and to accumulate in organisms living there.
- 325 - Biosensor Helps Characterize Contaminants and Health Risks Following Disasters -- Unger, Knap
Release Date: 01/05/2022
A sophisticated biosensor may provide information about contaminant distribution in the aftermath of natural disasters, according to an NIEHS Superfund Research Program (SRP)-funded study. Led by former Texas A&M University (TAMU) SRP Center trainee Krisa Camargo and Michael Unger, Ph.D., from the Virginia Institute of Marine Sciences, the team demonstrated this type of tool is useful for quickly characterizing and prioritizing environmental samples for further analysis, particularly in the context of disaster research response.
- 319 - Analyzing Chemicals and Genes Yields Novel Insight into PAH Behavior -- Simonich
Release Date: 07/07/2021
A new NIEHS Superfund Research Program (SRP)-funded study revealed how polycyclic aromatic hydrocarbons (PAHs) breakdown and transform in the presence of ultraviolet A (UVA) light and titanium dioxide nanoparticle pollutants. Their findings have important implications for PAH cleanup, which may not consider how PAHs transform in diverse environments.
- 295 - Model Predicts PAH Levels in Important Tribal Food Source -- Anderson
Release Date: 07/10/2019
A sediment passive sampling model can be used to accurately predict the concentration of polycyclic aromatic hydrocarbons (PAHs) in butter clams, according to a recent Superfund Research Program (SRP) study. Led by Kim Anderson, Ph.D., of the Oregon State University (OSU) SRP Center, the research team worked closely with tribal leaders to better predict PAH levels in butter clams while having a minimal impact on this important resource.