Science & Technology
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SAM Acronyms and Abbreviations
Definitions are provided for acronyms and abbreviations that are used throughout EPA's Selected Analytical Methods for Environmental Remediation and Recovery (SAM).
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AQS Memos - Questions and Answers Related to the AMP-255 Report
AQS Memos - Questions and Answers Related to the AMP-255 Report
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Obtaining AQS Data
AQS Obtaining AQS Data
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AQS NO2 and SO2 NAAQS Revisions
AQS NO2 and SO2 NAAQS Revisions
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AQS Memos - Lead monitors and the analyzing agency
AQS Memos - Lead monitors and the analyzing agency
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Biological Agents
These chemicals or organisms increase the rate at which microorganisms break down complex compounds into simpler products (biodegredation). Two bioremediation technologies currently being used for oil spill cleanups are fertilization and seeding.
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Six-Year Review 3 Compliance Monitoring Data (2006-2011)
Six-year review 3 occurrence data
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Support Documents for EPA’s Third Review of Existing Drinking Water Standards
The support documents for the Six-Year Review 3 of existing National Primary Drinking Water Standards contain extensive information including protocol for the review, and chemical contaminant health effects among others
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RFC 23002 & RFR 23002A - Toxic Substances Control Act (TSCA) Risk Evaluation for 1,4-Dioxane
Request for Correction (RFC) received on behalf of American Cleaning Institute and American Chemistry Council
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EPA's Principles of Scientific Integrity
Outline of the EPA's scientific integrity policy.
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Tribal Water and Natural Resources Conservation Guide
Landing page for the new Tribal Water and Natural Resources Conservation Guide
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U.S. Government’s International Methane Mitigation Activities: 2021 Accomplishments
The U.S. Government’s Global Methane Initiative Accomplishments ANNUAL REPORT (2021)
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U.S. Government’s International Methane Mitigation Activities: 2020 Accomplishments
The U.S. Government’s Global Methane Initiative Accomplishments ANNUAL REPORT (2020)
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Supporting Materials: Stakeholder Webinar: 2019 GHGI Public Review Estimates for Natural Gas & Petroleum Systems
GHGI Feb 2019 Stakeholder Meeting Supporting Materials
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Where can I get maps and/or emissions of facility emissions data?
The EPA provides emissions maps in two ways. First, each of the last three NEI years have a “Facility Mapping” tab available on the main NEI page for that inventory year (for example, see the 2020 NEI page). With this tool, maps can be created for one state at a…
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How are Oxides of Nitrogen (NOx) defined in the NEI?
For all source categories, NOx is compiled from emissions measurements that express NOx mass based on the molecular weight of nitrogen dioxide (NO2), which is 46. Even though emission streams initially consist mainly of NO from most sources, this expression of NOx by NO2 MW is appropriate due to the…
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How are emissions trends compiled?
For criteria air pollutants and precursors, the emissions trends are based on the triennial National Emissions Inventory data, with some interim year data included for non-triennial years. The methods and interim-year approaches are described on the “Development of Data” tab included with the data provided on the Air Pollutant Emissions…
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Region 5 Harmful Algal Bloom Clean Water Act/Safe Drinking Water Act Workshop and Public Meeting Chicago, IL
Information related to EPA Region 5 HABs Workshop.
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EPA/CDC Interim Clearance Strategy for Environments Contaminated with Anthrax
Strategy for public health and environmental Federal responders to aid Incident Command/Unified Command (IC/UC) in clearing a building or an outdoor environment after an incident involving contamination with Bacillus anthracis (B. anthracis)