Science & Technology
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Test - SAM 2025 Radiochemical Methods Query Results
Selected Analytical Methods
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Understanding Hypoxia in the Gulf Using CMAQ
The coupled EPIC/CMAQ modeling system simulated impacts on air and land quality of different land use changes driven by potential energy and agricultural management decisions. Linking these results to watershed models allows for analysis of hypoxia events.
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Updated Exceptional Events Rule FAQs
This document replaces the “Interim Exceptional Events Rule Frequently Asked Questions” document posted on May 14, 2013. This version also contains a newly inserted Question B.16. that was not included in the previously posted July 9, 2018 version.
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Informational Public Webinar on New Exceptional Events Implementation Tools
This page contains links to newly developed, draft exceptional events implementation tools and documents.
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Exceptional Events Documents Particulate Matter - Nevada County, CA
Exceptional Events Documents Ozone - San Joaquin Valley, CA
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Mobile Source Emission Factors Research
This page contains information on mobile source emission factors research being conducted by EPA's Office of Transportation and Air Quality, Data and Testing Center.
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EPA Compliance Monitoring and Enforcement Activities Map
The map is a visual tool that includes individual data points representing compliance monitoring (including inspections) and enforcement activities at facilities throughout the Region 6 states.
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2024 Request for Applications for the Integrated Atmospheric Deposition Network
Request for Applications for a cooperative agreement for a project to continue the long-term air deposition monitoring of persistent toxics around the Great Lakes.
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Protocol Gas Verification Program
Learn about the PGVP, the four main objectives, and read the rule.
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Land and Waste Management Research Milestones
Timeline of milestones.
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Fuel Effects on Vehicle Emissions
These test programs and modeling estimate the emissions impacts of changes in fuel properties and composition. Fuel effects are applied in the MOVES and NONROAD models.
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Answers to Frequent Questions about EPA’s Lead-based Paint Program
This document, the Paint Chip Sample Collection Guide, provides step?by?step instruction in how to collect paint chip samples and submit them for analysis.
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Tools to Track Progress in the Chesapeake Bay Watershed
This webpage describes the various tools available to track progress towards restoration in the Chesapeake Bay Watershed.
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Simulating PFAS Fate and Transport in Air with CMAQ
Description of green infrastructure and how CMAQ is exploring impacts of GI.
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Sector-Specific EPA Oversight in the Chesapeake Bay Watershed
This page describes EPA's periodic reviews of state programs as part of its oversight responsibilities under the Clean Water Act.
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Region 6 FOIA Repository
Frequently requested FOIA related documentation from region 6.
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AQS Memos - All About Pollutants
All About Pollutants
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Land, Oil Spill, and Waste Management Research Publications in the Science Inventory
Resources from the Science Inventory database of EPA's Office of Research and Development, as well as EPA's Science Matters journal, include research on managing contaminated sites and ground water modeling and decontamination technologies.
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Staging a Comeback Along the St. Louis River
EPA and a host of partners have been working to restore the St. Louis River estuary and help local communities reap the full benefits of a clean, healthy environment.
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What EPA Tests For
EPA analyte list