Science & Technology
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Model Averaging Webinar Workshop Announcement
Announcement for model averaging workshop, with links to included workshop materials and a follow-up report
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Model Averaging Webinar Workshop Support Materials
Background materials to be used by the Model Averaging Workshop participants. Documents include a technical report and discussion questions.
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Implementation of an Emission Statement Program
Guidance for the development and implementation of an emission statement program needed for State Implementation Plans.
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Oil and Gas Session (2019 EIC)
Papers and Presentation for Emissions Inventory Preparation for Oil and Gas session during the 2019 Emissions Inventory Conference.
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Are biogenic emissions included in the emissions trends Tier 1 data?
No, the biogenic emissions are not included in the emissions trends Tier 1 data. If needed, users can add the biogenic data either as a separate Tier, or specify its inclusion in the “Miscellaneous” Tier 1 group.
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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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National Water Reuse Action Plan Quarterly Updates
Quarterly updates on progress relating to the National Water Reuse Action Plan (WRAP).
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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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“Modeling and Validation of 48V Mild Hybrid Lithium-Ion Battery Pack,” SAE Technical Paper 2018-01-0433, 2018, SoDuk Lee, Jeff Cherry, Michael Safoutin, Joseph McDonald, Michael Olechiw
This paper presents the development and validation of a 48 V lithium-ion battery model that will be integrated into EPA’s ALPHA vehicle simulation model and that can also be used within Gamma Technologies, LLC (Westmont, IL) GT-DRIVE™ vehicle simulations.
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“Constructing Engine Maps for Full Vehicle Simulation Modeling,” SAE Technical Paper 2018-01-1412, 2018, Paul Dekraker, Daniel Barba, Andrew Moskalik, Karla Butters
This describes process for constructing complete engine maps using engine dynamometer and in-vehicle test data in ALPHA and others performing similar analyses; reviews using steady state and transient test data to characterize different operating conitions