Science & Technology
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EPA Science at 50: Progress for a Stronger Future
This year marks EPA’s 50th Anniversary. Science has played an integral part in the agency’s many successes in advancing its mission to protect public health and safeguard the natural environment.
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EPA Researchers Help Water Systems Keep Lead out of Drinking Water
If you have lead service lines, limiting corrosion is a necessary step to reduce lead exposure from drinking water.
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The Species Sensitivity Distribution Toolbox: A New Tool to Identify and Protect Vulnerable Species
EPA scientists have developed the Species Sensitivity Distribution (SSD) Toolbox to help risk assessors determine safe limits of chemical exposure.
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Researchers Assess Roadside Vegetation Barriers with a Suite of Air Monitors
EPA researchers are using innovative air monitoring approaches to learn more about how solid and vegetation barriers reduce exposure to harmful roadside air pollution.
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Celebrating Women's History Month
March is Women’s History Month! To celebrate, learn about some of the women working in EPA’s Office of Research and Development to protect human health and the environment.
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EPA Researchers Share Scientific Progress at Society of Toxicology 2021 Annual Meeting
Annually, EPA researchers participate in the Society of Toxicology (SOT) meeting and will continue sharing EPA science in SOT’s 2021 virtual environment
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EPA Deploys Mobile Labs to Work with Texas to Restore Drinking Water Systems
EPA relies on a substantial network of high-quality, in-house, scientific expertise and laboratory capabilities across its regions, programs, and offices to fulfill its mission.
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Advancing EPA’s Understanding of the Next Generation of Pesticides
To help the Agency evaluate nanopesticides, an EPA research team conducted an exhaustive search for patents and published literature related to nanopesticides to understand the state-of-the-science.
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New EPA Citizen Science Quality Assurance Handbook Provides Best Practices for Citizen Science Projects
EPA has created a new Quality Assurance handbook to be used with accompanying templates and examples for citizen science.
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Meet EPA Scientist Susan Yee, Ph.D.
Susan Yee, Ph.D., is an ecologist at EPA's Gulf Ecology Division. She is working on the Puerto Rico Sustainable Communities program, developing decision support tools to evaluate how alternative decisions impact coastal ecosystem goods and services
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Meet EPA Researcher Amber Sample, MS
Amber is an ORISE (Oak Ridge Institute for Science and Education) participant with the Great Lakes National Program office. She is interested in understanding people’s perspective and behaviors toward natural resources and how it relates to protection and
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EPA Researchers Showcase Research Capabilities to Local and National Media
EPA recently hosted members of local and national media on a tour of the unique research complex, where they discussed several topics including PFAS in drinking water, lead service lines, and legionella in premise plumbing.
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EPA Extends Cooperative Research and Development Agreement with New Zealand Company to Advance Air Sensor Technologies
EPA has extended a Cooperative Research and Development Agreement with Aeroqual, a New Zealand-based company specializing in the development of air quality monitoring equipment.
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10 Keys to Digester Success
Describes 10 key activities to ensure that a farm-based digester project is successful
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GCSOLAR
Page on GCSOLAR program, a set of routines that computes direct photolysis rates and half-lives of pollutants in the aquatic environment. Contains download files. New Version July 2018.
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GCSOLAR User's Manual
Manual for GCSOLAR program, which contains a set of routines that compute direct photolysis rates and half-lives of pollutants in the aquatic environment.
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GCSOLAR Release Notes
Release notes for the GCSOLAR software model, a set of routines that computes direct photolysis rates and half-lives of pollutants in the aquatic environment.
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Stakeholder Webinar (Nov. 2022): Natural Gas & Petroleum Systems in the GHG Inventory
2021 GHGI September 2021 Webinar Supporting Materials
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Certification and Compliance for Onroad Vehicles and Engines
Certification and compliance information for passenger cars and trucks (light-duty), commercial trucks and buses (heavy-duty), motorcycles (light-duty).
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Vehicle and Engine Emissions Testing at the National Vehicle and Fuel Emissions Laboratory (NVFEL)
This page provides an overview of the National Vehicle Emissions Testing Laboratory, which is part of EPA's Office of Transportation and Air Quality.