Science & Technology
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2020 National Emissions Inventory (NEI) Plan
The 2020 NEI Plan is prepared at least every three years by the U.S. EPA based primarily upon emissions estimates and emissions model inputs provided by State, Local and Tribal (SLT) air agencies, and supplemented by data developed by the EPA.
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Basic Information about the Mystic River Buoy
Information and diagrams of the Mystic River buoy in action.
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The Charles River Initiative
Learn about the Charles River initiative, see the report cards on the water quality, and read press releases on the status of the river over the years.
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Hydrography Event Management Tool Factsheet
This factsheet goes over the background, key features, and resources available for the Hydrography Event Management (HEM) Tool.
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Wastewater Technology Fact Sheets
A collection of fact sheets on wastewater technology.
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HAB Tools
Information related to The Harmful Algal Bloom and Hypoxia Research and Control Amendments Act (HABHRCA)
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Nitrogen Dioxide (NO2 Primary) Air Quality Standards - Documents from Review Completed in 2010
NO2 Primary Documents from Review Completed in 2010
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Nitrogen Dioxide (NO2) Air Quality Standards - Documents from Review Completed in 1996
Nitrogen Dioxide (NO2 Primary) Air Quality Standards - Documents from Review Completed in 1996
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Strategies for Reducing Residential Wood Smoke
This document identifies strategies to help state, tribal, and local air officials reduce fine particle pollution (PM2.5) that is attributed to residential wood smoke.
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EPA CyanoSymposium 2026 - March 16, 18, 23, and 25, 2026
Information related to EPA CyanoSymposium 2023 - October 16, 18, 23, and 26, 2023.
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EPA Outreach on HABs
Information related to the EPA Outreach on HABs
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Sulfur Dioxide (SO2) Air Quality Standards - Documents Prior to Review Completed in 2010
Sulfur Dioxide (SO2 Secondary) Air Quality Standards - Documents Prior to Review Completed in 2012
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FIFRA Scientific Advisory Panel Charter
The FIFRA Scientific Advisory Panel Charter was developed in 2006 to establish the Scientific Advisory Panel's mission and specific duties.
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"Weaving the National Hydrologic Geospatial Fabric"
A brief history of geospatial datasets and an overview of NHD, WBD, NED, NHDPlus, and StreamStats.
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Safer Choice Criteria for Solvents
Safer Choice focuses on characteristics most relevant to solvents used in cleaners to help distinguish safer solvents from those of greater concern
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Meeting Materials for the BPA Alternatives in Thermal Paper Partnership
Materials presented during the July 15, 2010, kick-off meeting for the BPA Alternatives in Thermal Paper Partnership are available.
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Safer Choice Criteria for Surfactants
Safer Choice has designed criteria to ensure that surfactants used in the Safer Choice Program and listed on the Safer Chemical Ingredients List meet its stringent hazard criteria.
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2019 Emissions Modeling Platform Technical Support Document
This document describes how the emission inventories were prepared for air quality modeling by the U.S. Environmental Protection Agency (EPA) for criteria air pollutants to represent the year of 2019.
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EPA and Other Relevant Resources
A wide range of federal programs are available to help organizations identify and implement GHG reduction opportunities.
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Quality Program Virtual Event June 25-27, 2024
This page contains the link to the session recordings from the Quality Program Virtual Training Event held June 25-27, 2024.