Science & Technology
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Supporting Documentation of the 2015 Ozone NAAQS Actions
IPM analyses of the Good Neighbor Plan.
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Results using 2023 Reference Case
Download EPA's IPM v6 including documentation, overview, System Summary Report, .DAT, .RPE, .RPT files, Gas Report, State Level Emissions, Generation and Heat Input Summary.
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SF6 Leak Monitoring Webcast
Overview of leak monitoring systems to identify SF6 emissions from high voltage electrical equipment.
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SF6 Gas Inventory Webcast
Overview of managing SF6 gas inventories.
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eGRID2018 Notes
Describes the data corrections made in eGRID2018v2.
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Petitions for Reconsideration Received for the CSAPR Update
EPA has received petitions for reconsideration of the Cross-State Air Pollution Rule Update for the 2008 Ozone NAAQS from the following stakeholders.
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Community Multiscale Air Quality (CMAQ) Model Impact Statement
This impact statement provides information on the Multiscale Air Quality (CMAQ) Model to can be used to improve understanding of air quality management issues.. .
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Responses to 40 CFR Part 75 Petitions - 2015
Find responses to petitions submitted by affected units subject to 40 CFR Part 75 in 2015.
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Responses to 40 CFR Part 75 Petitions - 2010
Find responses to petitions submitted by affected units subject to 40 CFR Part 75 in 2010.
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Virtual and Field Audit Resources
The Continuous Emissions Monitoring System (CEMS) Field Audit Manual details recommended procedures for conducting a field audit of a Part 75 monitoring system. Included are tools can use to prepare for an audit.
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Responses to 40 CFR Part 75 Petitions - 2007
Find responses to petitions submitted by affected units subject to 40 CFR Part 75 in 2007.
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Power Plants and Neighboring Communities Graphs
Graphs that display the relationship between power plants and the surrounding communities
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Part 75 Testing Notifications and Reports
Provides information on submitting notifications to EPA and states under Part 75 regulations. https://www.epa.gov/node/277573/edit#edit-group-javascript
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CHP's Role in Decarbonization
Learn about CHP benefits, including increased efficiency, reduced emissions of greenhouse gases and other air pollutants, energy cost savings, and enhanced energy reliability.
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Best Practice Documents on Greening Vacant Lots
The U.S. Environmental Protection Agency’s Region 5 compiled current practices on vacant lot greening as a resource on issues of stormwater management, construction specifications, job training, property maintenance and funding.
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EPA EcoBox Tools by Exposure Pathways - Water and Sediment
Eco-Box is a toolbox for exposure assessors. Its purpose is to provide a compendium of exposure assessment and risk characterization tools that will present comprehensive step-by-step guidance and links to relevant exposure assessment data bases
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External Review of BMDS 2.0 Beta Dichotomous (Quantal) Models (2007)
Summary and links to external peer reviews of BMDS dichotomous (quantal) models
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External Review of the Multistage Weibull Time-to-Tumor Model (2007)
Summary and links to external peer reviews of MS_Combo multi-tumor model
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Updated Seagrass Retrieval in EDM
Estuary Data Mapper (EDM) uses web coverage service (WCS) calls to retrieve, stream, and save data. This page describes how to tap into those WCS commands for your own applications and usages.
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Air-Surface Exchange Process Overview
This air-surface exchange overview describes the way CMAQ accounts for the constant exchange, or flux, of chemicals between the atmosphere and Earth’s surface.