Science & Technology
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Total Risk Integrated Methodology (TRIM) Air Pollutants Exposure Model Documentation (TRIM.Expo / APEX, Version 4.5)
The Air Pollutants Exposure model (APEX) is part of EPA’s overall Total Risk Integrated Methodology (TRIM) model framework (EPA, 1999).
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Total Risk Integrated Methodology (TRIM) Air Pollutants Exposure Model Documentation (TRIM.Expo / APEX, Version 4.3)
The Air Pollutants Exposure model (APEX) is part of EPA’s overall Total Risk Integrated Methodology (TRIM) model framework (EPA, 1999).
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Air: Fate, Exposure, and Risk Analysis (FERA)
The technical tools found oun this technical air resources website will assist with efforts to evaluate the health risks and environmental effects associated with exposure to specific air pollutants.
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TRIM Installation Page
An installation program has been developed for TRIM that downloads the TRIM executables, supporting libraries, and documentation.
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The NRC Risk Assessment Paradigm
The NRC Risk Assessment Paradigm
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Dose Response Assessment Tables
Dose Response Assessment Tables
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Total Risk Integrated Methodology (TRIM) Air Pollutants Exposure Model Documentation (TRIM.Expo / APEX, Version 3.x)
The Air Pollutants Exposure model (APEX) is part of EPA’s overall Total Risk Integrated Methodology (TRIM) model framework (EPA, 1999).
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Dose-Response Assessment for Assessing Health Risks Associated With Exposure to Hazardous Air Pollutants
Tabulated dose-response assessments that the Office of Air Quality Planning and Standards (OAQPS) uses for risk assessments of hazardous air pollutants.
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2023 Air Sensors Quality Assurance Workshop
Landing page for the 2023 Air Sensors QA Workshop
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National Lakes Assessment 2012 Key Findings
Key findings from the 2012 National Lakes Assessment
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National Lakes Assessment 2022 Key Findings
key findings of the national lakes assessment report 2017
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West Coast Estuaries: National Coastal Condition Assessment 2015
NRSA 2013-14 Results for the Coastal Plains ecoregion
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Southeast Coast Estuaries: National Coastal Condition Assessment 2015
NRSA 2013-14 Results for the Coastal Plains ecoregion
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Hydromodification and Habitat Alteration: National Management Measures
This guidance document provides technical assistance to states, territories, tribes, and the public for managing hydromodification activities and reducing associated NPS pollution of surface and ground water. The document describes
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Dockets
During the IRIS assessment development process, EPA releases materials informing the development of draft assessments for public comment and review. The table on this page includes active IRIS dockets and indicates if they are open.
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Risk-Screening Environmental Indicators (RSEI) Model
The Risk-Screening Environmental Indicators (RSEI) model is a computer-based screening tool that analyzes factors that may result in chronic human health risks and calculates various scores.
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Groundwater Guidance and Reports: Table of Contents
Access key EPA groundwater guidance and selected other reports on groundwater used frequently by Superfund Remedial Project Managers.
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EPA OIG Infrastructure Investment and Jobs Act Oversight
The OIG is prepared to maximize the effectiveness of Infrastructure Investment and Jobs Act funds appropriated to the EPA and specifically to the OIG for oversight, ensuring that they are used for their intended purposes.
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Pony Express Leaking Underground Storage Tank Site, Winnebago, Nebraska
EPA, in consultation with the Winnebago Tribe of Nebraska, Ho-Chunk, Incorporated and the Nebraska Department of Water, Energy and Environment, has determined that no further action is needed at the Pony Express Leaking Underground Storage Tank site.
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Fact Sheet: Odor Control in Biosolids Management
Odor complaints at operating facilities can lead to long term problems. Local public opposition can delay or prevent expansions or upgrades to facilities required to improve water quality.