Science & Technology
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Hazardous Air Pollutant Exposure Model (HAPEM) User's Guides
Human exposure modeling relates pollutant concentrations in the larger environmental media to pollutant concentrations in the immediate exposure media.
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Supporting Documentation APEX/TRIM.Expo Inhalation Model
Human exposure modeling relates pollutant concentrations in the larger environmental media to pollutant concentrations in the immediate exposure media.
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MIMS for TRIM
MIMS supports complex computational studies that use multiple interrelated models / programs, such as the modules within TRIM. MIMS is used by TRIM to run various models in sequence, while sharing input and output files.
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2019 AirToxScreen: Emissions Update Document
AirToxScreen emissions update document
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2014 NATA: Results Summary
A summary of results from EPA's 2014 National Air Toxics Assessment (NATA)
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National Air Toxics Assessment
NATA is an ongoing thorough evaluation of air toxics in the U.S. Intended as a screening tool, it helps air agencies learn which pollutants, emission sources and places they may wish to study further to better understand possible public health risks.
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Demographics Proximity Tool
Human exposure modeling relates pollutant concentrations in the larger environmental media to pollutant concentrations in the immediate exposure media.
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Enbridge Consent Decree Section VII.J. Independent Third Party Consent Decree Compliance Verification
Compliance with the consent decree.
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Alternative Leak Detection System
Enbridge's Line 5 biota investigation workplan and approval
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Protecting Our Climate by Reducing Use of HFCs
The American Innovation and Manufacturing (AIM) Act outlines new requirements for listed hydrofluorocarbons (HFCs). This site will inform the public of the phasedown of HFCs as well as serve as a platform for stakeholder engagement.
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BCP Ingredients Inc. Facility in Verona, Missouri
Addressing ethylene oxide is a priority for EPA, which is reviewing its current air regulations that limit the amount of EtO certain types of industries release to determine whether legal standards for EtO emissions to the air should be strengthened.
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Underground Storage Tanks (USTs)
Provides information about preventing and cleaning up releases from underground storage tanks.
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Global Greenhouse Gas Overview
Includes information on global greenhouse gas emissions trends, and by type of gas, by source, and by country.
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Climate Change Science
EPA tracks the science on the causes of climate change, observations of climate changes today, and the ways climate change could affect societies and ecosystems in the future.
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EPA Center for Corporate Climate Leadership
EPA's Center for Corporate Climate Leadership is a comprehensive resource to help organizations measure & manage GHG emissions. The Center provides technical tools, educational resources, opportunities for information sharing & highlights best practices.
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Scopes 1 and 2 Emissions Inventorying and Guidance
Utilize EPA-developed GHG inventory guidance that aligns with EPA-specific GHG calculation methodologies, emission factors, and management tools.
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Designing a Fish and Shellfish Contaminant Monitoring Program
Designing a Fish and Shellfish Contaminant Monitoring Program
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Shellfish Sample Types
Shellfish Sample Types
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In the Field - Sample Collection
In the Lab - Sample Collection
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Quality Assurance and Quality Control
Quality Assurance and Quality Control