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Persistent organic pollutants (POPs) such as Polychlorinated biphenyls (PCBs) are notorious for their widespread prevalence in aquatic and sedimentary ecosystems, recalcitrance, and carcinogenicity. Dredging and land-filling are still commonly used for treating PCB contaminated m...

Hester-Dendy (HD) multi-plate samplers have been widely used by state and federal government agencies for bioassessment of water quality through use of macroinvertebrate community data. To help guide remediation and restoration efforts at the Niagara River Great Lakes Area of Con...

Biochars with high phosphate (P) contents are promising amendments to remediate metal-contaminated soils due to their ability to form stable metal-P precipitates. However, their performance is usually assessed at a single pH. This study investigated the sorption of Pb, Cu, Zn, Cd...

U.S. tribes and states are currently challenged with identifying and characterizing the extent of per- and polyfluoroalkyl substances (PFAS) contamination and human exposure to PFAS, as well as developing effective and cost-efficient ways to prioritize site investigation. In the ...

Soils are common sources of metal(loid) contaminant exposure globally. Lead (Pb) and arsenic (As) are of paramount concern due to detrimental neurological and carcinogenic health effects, respectively. Pb and/or As contaminated soils require remediation, typically leading to exca...

Per- and polyfluroalkyl substances (PFAS) are a large group of chemicals of concern based on their potential persistence, bioaccumulation, and toxicity. A tiered approach to screening and testing using new approach methodologies has been proposed as one of the few tractable appro...

This presentation to the ROCS-Net group provides an introduction to environmental geophysics.&nbsp; Environmental geophysics is defined with applications.&nbsp; Several examples of research results are presented including some of the latest innovations in EPA's environmental geop...

Per- and polyfluoroalkyl substances (PFAS) are a class of persistent organic pollutants with emerging environmental and regulatory concerns.&nbsp; The California Water Board&rsquo;s Groundwater Ambient Monitoring and Assessment (GAMA) water quality database was used to estimate P...

Ricin is a highly toxic protein that is produced from the castor bean plant.&nbsp; Incidents with using ricin as a terrorist weapon have become more commonplace in recent years. This study examined a technique (Low Concentration Hydrogen Peroxide Vapor; LCHPV) to decontaminate ma...

With improved analytical techniques, environmental monitoring studies are increasingly able to report the occurrence of tens or hundreds of chemicals per site, making it difficult to identify the most relevant chemicals from a biological standpoint. For the present study, organic...

This sub-product produces outreach materials such as presentations, peer-reviewed journal articles or EPA reports to disseminate results from the testing and evaluations conducted in the primary research area product SHC.402.6.5. Outreach materials provide stakeholders and the pu...

Our article analyzes interdisciplinary literature within the social sciences on outcomes of environmental cleanups at Superfund, brownfi eld, and other contaminated sites. By focusing on postre mediation sites and outcomes, we expand the understanding of the sociopolitical life o...

Over the past handful of years, tools and approaches have been developed to increase the consideration of ecosystem services (benefits from nature) in the cleanup of contaminated sites. This webinar will update earlier introductions to ecosystem services with recent advances for ...

Biochar (BC) is a term applied to a broad category of pyrolyzed carbonaceous material. As a soil amendment, BC has been shown to improve soil fertility for revegetation efforts at contaminated sites as well as potentially sequester organic and inorganic contaminants. The careful ...

Lead (Pb) and arsenic (As) contamination of soils is widespread in the United States and is an important source of exposure in young children. Early life exposure to metal(loid) contaminants has serious and long-lasting effects on health, making mitigation a critical public healt...

Background/Objectives.&nbsp; Recent studies have shown that polychlorinated biphenyls (PCBs) can be exported from aquatic to terrestrial food webs via insect-mediated contaminant flux, therefore extending the potential risk from contaminated sediments beyond aquatic biota to rip...

Background/Objectives. Soil gas intruding into homes and buildings has always been a detriment to indoor air quality (e.g., radon, CO2, moisture/mold) and it is getting worse (e.g., from spills of petroleum, chlorinated and perfluorinated chemicals). Despite several decades of ef...

Lead (Pb) contamination of soils is widespread in the United States and is an important source of Pb exposure in young children. Early life exposure to Pb has serious and long-lasting effects on health, making mitigation a critical public health goal. Removal/replacement of Pb-co...

Lead (Pb) is a pervasive environmental contaminant commonly sourced from anthropogenic activities such as smelting, lead-based paint, and exhausted leaded gasoline. Soils in residential neighborhoods are of particular concern as soil Pb may cause significant adverse health effect...

Presentation for State environmental agencies on underground storage tanks (USTs). Includes discussion of impacts of USTs on drinking water supplies and the effects of extreme weather and climate change on facilities and drinking water.

The scrutiny of environmental cleanups within the United States has been a growing area of interest for social scientists. Scholars have used case studies and modeling to analyze struggles for environmental justice and the economics of stigma associated with Superfund sites. This...

This abstract is for a presentation discussing how X-ray absorption spectroscopy data provides insights into house dust and soil Pb bioavailability. This is critical, as it allows for better determination of Pb exposure via house dust and soil. Additionally, this is necessary for...

This report focuses on the problem of diving plumes, a term which generally refers to plumes that go deeper into aquifers with distances from their sources. This document presents the mathematical basis of software for real-time development and refinement of site conceptual model...

The Handbook provides a conceptual framework and indicators to assess the indirect impacts of extreme events (e.g., extreme heat, floods, drought, wildfires) on communities through potential exposure to contaminant releases from nearby contaminated sites and waste management faci...

Permeable reactive barriers (PRBs) are used for groundwater remediation at various sites worldwide. This technology has been efficient at appropriate sites for treating organic and inorganic contaminants using zero-valent iron (ZVI) as a reductant and as a reactive material. Cont...