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  2. Air Emissions Factors and Quantification

AP 42, Fifth Edition, Volume I Chapter 3: Stationary Internal Combustion Sources

 
3.1 Stationary Gas Turbines

  • AP-42 3.1 Final Section - Supplement F, April 2000 (pdf) (97.08 KB)
  • AP-42 3.1 Background Document (pdf) (241.35 KB)
  • Related Information - The data that supports the emissions factors are presented in summary in the background report and are reported more completely in a database. The  database is a zipped MS Access file (zip)  . (ZIP 235K)

 
3.2 Natural Gas-fired Reciprocating Engines

  • AP-42 3.2 Final Section - October 2024 (pdf) (313.98 KB)
  • AP-42 3.2 Background Document (pdf) (162.62 KB)  (35 pp, 167 K)
  • AP-42 3.2 Related Information

 
3.3 Gasoline and Diesel Industrial Engines

  • AP-42 3.3 Final Section - April 2025 (pdf) (269.6 KB)
  • AP-42 3.3 Background Document (pdf) (140.92 KB)  (74 pp, 144 K)

 
3.4 Large Stationary Diesel and All Stationary Dual-fuel Engines

  • AP-42 3.4 Final Section - April 2025 (pdf) (280.89 KB)
  • AP-42 3.4 Background Document (pdf) (88 pp, 217 KB) 1993 with September 1996 revisions

AP 42 Emissions Factors by Chapter

Air Emissions Factors and Quantification

  • Basic Information
  • AP-42
  • Emissions Estimation Tools
Contact Us about Air Emissions Factors
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on April 11, 2025
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