Science & Technology
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Why do the PM2.5 emissions for the electric utilities source category jump up between 1998 and 1999?
The estimation method for PM emissions from fuel combustion sources was enhanced beginning with the 1999 National Emissions Inventory. Prior to 1999, the emissions measurement data methodology only included the filterable portion (which means the solid particle matter at elevated stack temperatures). Beginning with the 1999 NEI, both the filterable…
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Fire and Biomass Burning Session (2019 EIC)
Papers and Presentations for the Fire and Biomass Burning session during the 2019 International Emissions Inventory Conference.
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CAER Session (2019 EIC)
Papers and Presentations for the CAER session during the 2019 International Emissions Inventory Conference.
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Air Quality Modeling Session (2019 EIC)
Papers and Presentations for the Air Quality Modeling session during the 2019 International Emissions Inventory Conference.
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Air Emissions Inventory Guidance for Implementation of Ozone and Particulate Matter NAAQS and Regional Haze Regulations
Guidance document on how to develop emission inventories to meet State Implementation Plan requirements for complying with the 8-hour ozone national ambient air quality standards (NAAQS), the revised particulate matter (PM) NAAQS, and the regional haze reg
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Plenary Session of 2015 Emissions Inventory Conference
Presentation/papers given by keynote speakers at the 2015 Emission Inventory Conference
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Where can I obtain the hourly data from Continuous Emissions Monitors (CEMs)?
The CEM emissions data are available from the EPA Clean Air Markets Program Data website.
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Toxics and Speciation Session (2019 EIC)
Papers and Presentations for the Toxics and Speciation session during the 2019 International Emissions Inventory Conference.
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Tools Session (2019 EIC)
Papers and Presentations for the Tools session during the 2019 International Emissions Inventory conference.
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Memo on Public Hearing Requirements for 1990 Base-Year Emission Inventory for Ozone and Carbon Monoxide Nonattainment Areas
A memorandum clarifying that emissions inventories for a State Implementation Plans are subject to the public hearing requirements.
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Memo on Emission Statement Requirement Under 8-Hour Ozone NAAQS Implementation
A memorandum indicating that the emission statement requirements is applicable to nonattainment areas for the 8-hour ozone NAAQS.
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EPA/Industry Engine and Vehicle Compliance Workshop Agenda/Presentations
This page contains workshop agenda/presentations for the three-day EPA/Industry Engine and vehicle Compliance Workshop featuring discussions on certification, compliance, and implementation issues related to EPA’s compliance program.
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Interim Joint Technical Assessment Report: Light-Duty Vehicle Greenhouse Gas Emission Standards and Corporate Average Fuel Economy Standards for Model Years 2017-2025
EPA and the NHTSA collaborated with CARB on this joint Technical Assessment Report to build on the success of the first phase of the National Program to regulate fuel economy and greenhouse gas (GHG) emissions from U.S. light-duty vehicles.
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Ways to Search and Browse NSCEP Publications
The searches look at a full-text index of the electronic documents and an index of the metadata records for both the hardcopy and digital titles.
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EPA Open Government Plan 5.0
EPA Open Government Plan 5.0
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About ICLUS
ICLUS is a project for developing scenarios broadly consistent with global-scale, peer-reviewed storylines of population growth and economic development, which are used by climate change modelers to develop projections of future climate.
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About LASSO
This page is about the LASSO tool User guide that are part of the Global Climate Explorer set of tools using an ESRI map to display the data.
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4. Using the Mapper Functions
Section 4 of 7 of the Re-Powering Mapper User Guide and Data Documentation. This section provides the user with detailed instructions on how to use the mapper tool, including navigation, selection, adding data, printing and exporting, measuring, and more.
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3. Mapper Elements
Section 3 of 7 of the Re-Powering Mapper User Guide and Data Documentation. This section provides the user with an overview of the map elements.
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2. Quick Start
Section 2 of 7 of the Re-Powering Mapper User Guide and Data Documentation. This quick start section provides users with a high-level overview of how to use the mapper tool.