Science & Technology
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Meet EPA Chemist Lisandra Santiago-Delgado Trine
EPA chemist Lisandra Santiago-Delgado Trine analyzes water samples from across the nation to study how certain elements move through environmental systems.
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EPA’s Stormwater Calculator Gets An Update
EPA's stormwater calculator is now available as a mobile web application.
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Swimming Upstream: Research to Protect Salmon Habitat in the Columbia River
EPA scientists in Corvallis, Oregon, are creating detailed digital models of local river systems and tracking populations of salmon and steelhead as they migrate upstream.
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Meet EPA Environmental Engineer Joseph Wood
Joseph works in EPA’s National Homeland Security Research Center. His research focuses primarily on developing and testing decontamination techniques to inactivate spores of Bacillus anthracis, the cause of anthrax disease.
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Meet EPA Senior Scientist Jason Sacks, MPH
EPA Epidemiologist Jason Sacks works to protect and improve air quality by helping to develop Integrated Science Assessments, which form the scientific basis of the National Ambient Air Quality Standards.
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EPA Researchers Work with Oklahoma Partners to Evaluate Ecological Conditions of Wadeable Streams and Restore Valuable Water Resources
EPA researchers worked with partners in Oklahoma to refine their current biological indices. The goal of this effort was to improve bioassessments based on fish and macroinvertebrate assemblages in wadeable streams throughout the state.
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Linking Minnesota Land Cover Changes to Drinking Water Treatment
EPA scientists are working with communities in Minnesota to look at the effects of land cover changes on drinking water treatment.
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May 28 Webinar on Air Quality and Healthy Hearts: Progress and Remaining Challenges
Join our May 28 webinar that will highlight EPA research and new findings on the impacts of air pollution on the cardiovascular system.
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EPA Uses Floating Vegetated Islands to Remove Excess Nutrients from Water
Harmful algal blooms—the overgrowth of algae in water—are a major problem across the nation. They can cause severe, negative impacts on aquatic ecosystems, the economy, and human health.
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Meet EPA Epidemiologist Rebecca Massa Nachman, Ph.D., MPH
EPA epidemiologist Rebecca Nachman works on health assessments for EPA’s Integrated Risk Information System (IRIS) program. She contributed to the recently finalized IRIS assessment of hexavalent chromium and currently is working on IRIS assessments of met
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Children’s Health Month: Preventing Lead Exposure for Children Before it Occurs
EPA researchers are investigating ways to protect children from lead exposure.
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Groundwater: Understanding and Protecting Our Hidden Resource
Groundwater provides about half of the drinking water supply worldwide. To protect this valuable resource, EPA researchers study how water is transported through the subsurface and how contaminants can move underground.
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Preventing Algal Blooms with a “Pinch of Sugar”
EPA researchers are looking at ways to inhibit the development of algae that can produce cyanobacterial harmful algal blooms. One method they are studying is adding a food source to water that would allow other bacteria to better compete.
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LakeCat Updates
The LakeCat Dataset is an extensive collection of landscape metrics for about 378 thousand lakes and associated catchments within the conterminous U.S.
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Water Quality Standards Regulations: Confederated Tribes of Coos, Lower Umpqua, and Siuslaw Indians
Information about water quality standards for the Confederated Tribes of Coos, Lower Umpqua, and Siuslaw Indians.
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Reaeration Measurement by Diffusion Dome
Field Branches Quality System and Technical Procedures
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Chemical Speciation Network (CSN) - Special Studies
information on the Quality Assurance program for the PM2.5 Chemical Speciation Network (CSN).
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Pennsylvania - 2017 Annual Network Plan
Network plan provides framework for establishment and maintenance of air quality surveillance system for the state of Pennsylvania.
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Idaho - 2017 Annual Network Plan
Network plan provides framework for establishment and maintenance of air quality surveillance system for the state of Idaho.
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Nebraska - 2016 Annual Network Plan
Network plan provides framework for establishment and maintenance of air quality surveillance system for the state of Nebraska.