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Lake Superior stands as an exception to the other Laurentian Great Lakes when it comes to Dreissena mussels, with these invasive species established in the St. Louis River estuary (SLRE) since 1989 but seeming not to colonize the lake proper.&nbsp; In the last few years, however,...

In urban systems, a wide variety of processes (including increasing impervious surface cover, road salt application, sewage leaks, and weathering of the built environment) contribute to novel chemical cocktails made up of metals, salts, nutrients, and organic matter. Due to heter...

Biomonitoring at contaminated sites undergoing cleanup, including Superfund sites, often uses bioaccumulation of anthropogenic contaminants by field-deployed organisms as a metric of remedial effectiveness. Bioaccumulation studies are unable to assess the equilibrium status of th...

Chlorophyll a concentration serves as a proxy for phytoplankton abundance and an indicator of eutrophication. Monitoring of chlorophyll a is traditionally performed via in situ sampling, which tends to be costly and thus limited in both space and time. Publicly available satellit...

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Globally, lead (Pb) contamination is one of the top ten chemical exposure issues affecting public health. Children’s neurological system development can be impaired by even low levels of Pb exposure. Detailed site histories and the identification of specific sources of Pb (e.g., ...

Lead corrosion assessment tools (i.e., desktop studies, bench top studies, pilot studies, diagnostic drinking water sampling for metals and pipe scaleanalysis) are used for fundamental or applied research by academic groups, as well as for voluntary operational improvements or fo...

Lead corrosion assessment tools (i.e., desktop studies, bench top studies, pilot studies, diagnostic drinking water sampling for metals and pipe scale analysis) are used for fundamental or applied research by academic groups, as well as for voluntary operational improvements or f...

This presentation is part of a four hour in-person corrosion training being held as part of the 20th Annual EPA Drinking Water Workshop: Small System Challenges and Solutions. The presentation will occur on September 14, 2023 and will include an introduction to lead/copper corros...

Elevated levels of per- and polyfluoroalkyl substances (PFAS) widely detected in consumer products, building materials, indoor air, and house dust underscore the relevance of the indoor environment to human exposure. Another source of PFAS in the indoor environment is through vap...

This report highlights the importance of effective data management in disaster response, specifically focusing on environmental sampling. In today's data-driven world, data management is crucial for decision-making, coordination, and systems thinking in disaster scenarios. Effici...

Home plumbing can be contaminated with PFAS from aqueous film forming foams (AFFF) through accidental backflow resulting from firefighting related activities, including back-siphoning during routine maintenance of equipment.  This exact incident did occur in Wyoming, OH in 2018, ...

Per- and polyfluorinated alkyl substances (PFAS) are a class of industrial chemicals that consist of carbon-fluorine backbone chains with different functional groups that provide water-resistant, lipophobic, stain-resistant, and other advantageous properties to materials. PFAS ar...

Background and Objectives: Coccidioidomycosis is an emerging fungal infection caused by inhalation of airborne spores of the Coccidioides genus. While Coccidioides immitis has been detected in soils across California, few studies have detected the spores in air, limiting understa...

Bioinfiltration units were constructed at USEPA’s Edison Environmental Center to evaluate watershed to surface runoff ratio for sizing of green infrastructure controls. Three sizes of hydraulically isolated units were tested in duplicate with changes in aspect ratio of length fro...

Recent technological advancements have led to the development of new high-throughput profiling methods, such as transcriptomics, that can be used to rapidly screen environmental chemicals for potential hazards. It is now feasible to profile all protein-coding genes across thousan...

Jurisdictions are currently challenged with efficiently identifying and characterizing the extent of per- and polyfluoroalkyl substances (PFAS) contamination and human exposure to PFAS. While PFAS contamination can be presumed near well-studied sources, the number of potential so...

This product evaluates various methods to determine the presence of leaded materials within premise plumbing, particularly lead service lines, but considers all lead sources. This can be done in numerous ways from innovative tap sampling methods, novel sensors and visual inspecti...

This report summarizes novel air sampling research conducted for the multi-agency Analysis for Coastal Operational Resiliency (AnCOR) program which sought to develop and demonstrate capabilities and strategic guidelines to prepare the US for a wide-area release of a biological ag...

The characterization of emissions of per- and polyfluoroalkyl substances (PFAS) and other fluorinated organics from sources is vital to understand the efficacy of destruction and pollution control technologies and the potential contamination a source may cause to the environment....

This presentation will cover ORD air PFAS emissions measurement methods development research and activities which falls under EPA ORD&rsquo;s PFAS research program.

Presentation to be given at Carolinas Air Pollution Control Association's Spring 2023 meeting on EPA's source methods for PFAS in air.

The effect of wildfire on aquatic habitat over time is not well understood due to the absence of systematic observations over long periods of time. In Western Oregon, Washington and Northern California, the Aquatic and Riparian Effectiveness Monitoring Program (AREMP) has been co...

In the event of a chemical, biological, radiological, and/or nuclear (CBRN) wide-area incident, the U.S. Environmental Protection Agency (EPA) is responsible for environmental remediation, waste disposal processes, data collection, and data quality checks to advise decision-makin...

Gulf of Mexico (GOM) estuaries are highly productive systems that are ecologically and economically important. The GOM region provides extensive habitat to high-value fisheries species and valuable ecosystem goods and services such as oil and gas, shipping ports, and tourism. Dee...