Science & Technology
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Responses to 40 CFR Part 75 Petitions - 2017
Approval for an alternative data substitution methodology.
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Responses to 40 CFR Part 75 Petitions - 2021
The Agency response to the Sarpy County petition request..
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Eliminating Bias in Monitoring Systems
Learn how to eliminate bias from monitoring systems by instituting appropriate installation, operation, and quality assurance procedures. Provides links to download An Operator's Guide to Eliminating Bias in CEM Systems.
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Nitrogen Dioxide (NO2) Primary Standards - Planning Documents from Current Review
Scientific and technical planning documents used to develop the current nitrogen dioxide primary national ambient air quality standard.
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Natural Gas STAR Partner Update Newsletters
Past issues of the Natural Gas STAR Program Partner Update newsletters.
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Methane Challenge Continuous Improvement - Equipment Leaks
Presentation from the April 2020 Methane Challenge webinar.
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Human Exposure Modeling - Other Models and Exposure Related Information
Human exposure modeling relates pollutant concentrations in the larger environmental media to pollutant concentrations in the immediate exposure media.
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Working Paper: Modeling the Property Price Impact of Water Quality in 14 Chesapeake Bay Counties
This is a working paper titled "Modeling the Property Price Impact of Water Quality in 14 Chesapeake Bay Counties"
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Working Paper: The Energy Efficiency Paradox: A Case Study of Supermarket Refrigeration System Investment Decisions
This is a working paper titled "The Energy Efficiency Paradox: A Case Study of Supermarket Refrigeration System Investment Decisions"
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Meet EPA CSS National Program Director, Annette Guiseppi-Elie, PhD, FAIMBE
Dr. Annette Guiseppi-Elie is the Associate Director for Science at EPA’s Center for Computational Toxicology and Exposure (CCTE) in the Office of Research and Development. Learn more about her work.
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In the Field with EPA: Monitoring the Impact of Wildfires and Woodsmoke on Indoor Air Quality
EPA researchers are working with Tribal and community partners on a multi-faceted study to develop new solutions and approaches for reducing wildfire smoke exposures.
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Thankful for Science
We’re thankful for our hardworking researchers that contribute to EPA’s mission to protect human and environmental health. Read about what some of our researchers are thankful for this year.
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EPA Researchers Investigate the Effectiveness of Point‐of‐use/Point‐of‐entry Systems to Remove Per‐ and Polyfluoroalkyl Substances from Drinking Water
EPA is making extensive efforts to help communities address per- and polyfluoroalkyl substances (PFAS) in drinking water.
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A Year in Review: Progress on the Research Goal of the Federal Lead Action Plan
Progress on the Federal Lead Action Plan
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Sustainable Treatment System Caps Off Cleanup at Elizabeth Mine Superfund Site
EPA researchers worked with a team of other experts on the cleanup efforts to solve complex problems at the abandoned mine site.
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EPA Researchers Develop Method for Studying Agricultural Nutrient Pollution in the Midwest
EPA researchers are studying when, and to what extent, these nutrients enter Midwestern waterbodies.
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Research Reflections and Looking to the New Year
Read reflections from EPA researchers on their work in 2022.
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EPA Releases Draft Revised Risk Determination for HBCD for Public Comment
Announcement about release of revised risk determination for HBCD
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Meet EPA Researcher Heath Mash, Ph.D.
I’m originally from the Cleveland area and grew up in Parma Heights, Ohio. I have always been a fan of sports in general and am a Cleveland fan in general; the Cleveland Browns/Indians (Guardians)/Cavalier’s fan.
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EPA Federal Facilities Forum Issue Paper: Site Characterization for Munitions Constituents
The nature of energetic residues on munitions sites, strategies that provide representative samples, and analytical methods developed to characterize those samples.