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  1. Home
  2. Air Emissions Inventories

Air Emissions Points of Contact

Points of Contact
Name  Email  Responsibilities
Marc Houyoux houyoux.marc@epa.gov Group Leader and Emissions Inventory Guidance
Rich Mason mason.rich@epa.gov

National emissions inventory (NEI) team lead, emission trends, all nonpoint fuel combustion including residential wood (RWC) and industrial and commercial/institutional (ICI), mercury, dust, and all other nonpoint sources not covered by others

Alison Eyth eyth.alison@epa.gov Emissions modeling team lead, temporal allocation, spatial allocation
Tesh Rao rao.venkatesh@epa.gov Emissions methods team lead, liaison to Office of Research and Development (ORD) on all emissions-related research for the NEI
Janice Godfrey godfrey.janice@epa.gov

Source Classification Codes (SCCs), and all onroad and nonroad mobile sources, including point airports and rail yards, and nonpoint commercial marine vessels and rail, website development and maintenance

Jeff Vukovich vukovich.jeffrey@epa.gov Fires, oil and gas lead, biogenics, emissions projections
Julia Gamas gamas.julia@epa.gov Combined Air Emissions Reporting (CAER) Project  
Caroline Farkas farkas.caroline@epa.gov 2023 Emission Inventory Conference technical chair, air toxics data updates, AirToxScreen lead, emissions projections
Lindsay Dayton dayton.lindsay@epa.gov Quality Assurance, Sharepoint Access, EIS Access
Art Diem diem.art@epa.gov All Point sources except airports and rail yards, HAP emissions lead, SPECIATE backup, AirToxScreen backup
Karl Seltzer seltzer.karl@epa.gov Solvents, asphalt paving, cooking, SPECIATE lead, air quality model speciation
Yijia Dietrich dietrich.yijia@epa.gov All agricultural sources, oil and gas backup

For questions or information regarding air emissions factors for criteria and hazardous air pollutants, contact info.chief@epa.gov.

If you have a specific air quality problem or complaint, see the Report Environmental Violations website to contact the EPA.

Air Emissions Inventories

  • Get Data
    • 2020 NEI
      • 2020 NEI Technical Support Document (TSD)
      • 2020 NEI Online Retrieval Tool
      • 2020 Supporting Data and Summaries
      • 2020 Plan
      • 2020 NEI and Trends Report
    • All Emissions Data
    • Air Pollutants Emissions Trends Data
    • Air Emissions Modeling
  • Report Data
    • 2023 NEI Documentation
    • CAERS
      • CAERS Login
      • CAERS User Guide
    • EIS
      • Emissions Inventory System (EIS) Gateway
      • EIS User's Manual and How To's
      • Emissions Inventory System (EIS) Bridge Tools
    • Air Emissions Reporting Requirement (AERR)
  • Other Resources
    • Air Emissions Inventory Frequent Questions
    • Training
    • Emissions Inventory Guidance
    • Conference
      • 2023 International Emissions Inventory Conference
    • Methods and Science
  • Emissions Inventory Listservs
  • Points of Contact
Contact Us About Air Emissions Inventories
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on March 25, 2025
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