<< Previous

Next >>

Background: The frequency of lithium-ion (Li-ion) battery-related fires is increasing globally, creating new challenges for firefighters and growing public safety concerns because they produce copious amounts of smoke and intense heat. Li-ion battery fires can quickly spread and ...

Manual provides guidance on the selection, design, and operation of membrane filtration to comply with the treatment requirements of the Long Term 2 Enhanced Surface Water Treatment Rule (LT2 ESWTR).

Per and polyfluoroalkyl substances (PFAS) are ubiquitous in the indoor environment, resulting in indoor exposure. However, a dearth of concurrent indoor multi-compartment PFAS measurements, including air, has limited our understanding of the contributions of each exposure pathway...

Antimicrobial (AMR) research at the EPA has resulted in the publication of  3 new journal articles since Sept. 2024 when this dynamic graphic summary that was last updated.  Major points from these papers include: 1. Microplastic surfaces encourage biofilm formation, enriching a...

The database Estuarine Habitat Project contains tables holding information on fyke net and trawl sampling done in the Yaquina, Oregon estuary during 2008 to 2011

Per- and polyfluoroalkyl substances (PFAS) are prevalent in consumer products used indoors. However, few measurements of ionic PFAS exist for indoor air. We analyzed samples collected on PM2.5&nbsp;quartz fiber filters (QFFs) in 11 North Carolina homes 1&ndash;3 times in living r...

Wastewater-based testing (WBT) and surveillance research at a fine-spatial scale holds significant potential for monitoring and epidemiology, sewer fate and transport studies, antimicrobial resistance research, and benefiting wastewater utilities (e.g., identifying illicit discha...

Fecal contamination and antimicrobial-resistant bacteria pose significant health risks to people who use natural surface water sources. We know that rainfall and river conditions can greatly impact the spread of these contaminants, especially through a process called the &quot;fl...

Water quality impacts public health and is influenced by a wide range of factors, from stagnation and associated loss of disinfectant and formation of disinfection byproducts, to growth of microorganisms (e.g., Legionella), to potential contamination after a chemical spill. Flush...

This is a lecture on air pollution (including wildfire smoke) and health to be given to medical students in an elective environmental health seminar at the University of NC-Chapel Hill on Tuesday, June 10, 2025.&nbsp;

&nbsp;Background and Purpose Disinfection byproducts (DBPs) are chemical compounds that form when disinfectants like chlorine, chloramine, or ozone react with organic and inorganic materials present in water. While disinfection is critical for protecting public health by eliminat...

The emergence of patterned neural network activity is a hallmark of the developing brain. This phenomenon has been modeled with in vitro cell culture systems using microelectrode arrays (MEA). The MEA network formation assay (NFA) was developed to detect perturbations in neural n...

The ECOTOXicology Knowledgebase (ECOTOX) is a comprehensive, publicly available resource providing single chemical environmental toxicity data on aquatic life, terrestrial plants and wildlife.The database is updated quarterly, and to identify relevant references and extract perti...

Regulatory decisions surrounding chemical safety are based primarily, although not exclusively, on human and environmental protection. Historically, there has been a reliance on animal toxicity testing to inform hazard and risk assessment. Typically, mammalian data drive human he...

Wildfires are a major source of poor air quality across the U.S. The regulatory monitoring network is unable to capture the large spatial and temporal gradients of many smoke plumes, providing limited information to support emergency response teams managing the incident and commu...

Temporal patterns of tree mortality were determined for mature, naturally regenerated Douglas-fir-dominated (Pseudotsuga menziesii var menziesiiPseudotsuga menziesii (Mirb.) Franco) conifer stands along an elevational gradient in western Oregon, USA based on periodic mortality su...

Identifying chemical stressors present in various environments is necessary to evaluate potential exposures and their subsequent health risks. Targeted analysis has been the traditional method for chemical monitoring; however, emergent chemicals and their transformation products ...

Background:&nbsp;With thousands of chemicals in commerce and the environment, rapid identification of potential hazards is a critical need. Combining broad molecular profiling with targeted&nbsp;in vitro&nbsp;assays, such as high-throughput transcriptomics (HTTr) and receptor scr...

Each year, as the sheer amount of chemicals readily available to the market increases, so does the need for short-term and cost effective high-throughput assays that can be used to evaluate chemical potency and infer potential hazards to human health and/or ecosystems. Over the p...

6PPD-quinone (N-(1,3-dimethylbutyl)-N′-phenyl-p-phenylenediamine quinone), a transformation product of the antiozonant 6PPD (N-(1,3-dimethylbutyl)-N′-phenyl-p-phenylenediamine) is a likely causative agent of coho salmon (Oncorhynchus kisutch) pre-spawn mortality. Stormwater runof...

The Oronogo-Duenweg mining belt in southwest Missouri is an EPA Superfund site due to Pb-contaminated soil and groundwater from historic mining and smelting. Remediation has removed Pb-contaminated overburden, uncovering nutrient-deficient C horizons containing elevated Cd and Zn...

Presentation to the US EPA OHHRRAF Webinar, May 2025

Two related Access databases containing taxonomic information related to sampling of benthic infauna at a dredge disposal site offshore of Yaquina Bay.

The accompanying database contains the data associated with an EPA funded study of the migratory behavior of salmonid smolts in Oregon&rsquo;s Yaquina and Alsea estuaries. Acoustic transmitters were inserting into the body cavity of smolts, and arrays of acoustic receivers that w...

In 1956 the Minnesota Department of Health asked the School of Public Health of the University of Minnesota to conduct a limnological study of Lake&nbsp;Superior. The original planning of the project was conducted in conference with individuals now widely recognized as early lead...