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  2. Air Emissions Factors and Quantification

AP 42, Fifth Edition, Volume I Chapter 13: Miscellaneous Sources

AP 42, Fifth Edition, Volume I, Chapter 13: Miscellaneous Sources

 
13.0 Introduction to Miscellaneous Sources


13.1 Wildfires and Prescribed Burning

  • AP-42 13.1 Final Section - Supplement B, October 1996 (PDF)
  • AP-42 13.1 Related Information (PDF)

13.2 Introduction to Fugitive Dust Sources

  • AP-42 13.2 Final Section - January 1995 (PDF)

13.2.1 Paved Roads​

  • AP-42 13.2.1 Final Section - January 2011 (PDF)
  • AP-42 13.2.1 Background Documentation - January 2011 (PDF)
  • AP-42 13.2.1 Related Information

13.2.2 Unpaved Roads

  • AP-42 13.2.2 Final Section - November 2006 (PDF) (20 pp, 361 K)
  • AP-42 13.2.2 Background Document for Revisions to Fine Fraction Ratios Used for AP-42 Fugitive Dust Emission Factors - November 2006 (PDF)(54 pp, 1 MB) 
  • AP-42 13.2.2 Background Documentation - September 1998 (PDF) (138 pp, 463 K)
  • AP-42 13.2.2 Related Information

13.2.3 Heavy Construction Operations

  • AP-42 13.2.3 Final Section - January 1995 (PDF) (7 pp, 61 K)
  • Errata - Section corrected February 2010 - References to a "Material Handling Factor in section 13.2.2" in Table 13.2.3-1 were updated to say "Material handling emission factor equation in Section 13.2.4." The reference to section to 13.2.2 was an error.

13.2.4 Aggregate Handling and Storage Piles

  • AP-42 13.2.4 Final Section - November 2006 (PDF) (6 pp, 50 K)
  • AP-42 13.2.4 Background Document for Revisions to Fine Fraction Ratios Used for AP-42 Fugitive Dust Emission Factors - November 2006 (PDF) (15 pp, 146 K)
  • AP-42 13.2.4 Related Information

13.2.5 Industrial Wind Erosion

  • AP-42 13.2.5 Final Section - November 2006 (PDF) (15 pp, 185 K)
  • AP-42 13.2.5 Background Document for Revisions to Fine Fraction Ratios Used for AP-42 Fugitive Dust Emission Factors - November 2006 (PDF)(15 pp, 146 K)
  • AP-42 13.2.5 Related Information 

13.2.6 Abrasive Blasting

  • AP-42 13.2.6 Final Section - Supplement D, October 1997 (PDF) (4 pp, 55 K)
  • AP-42 13.2.6 Background Document (PDF) (38 pp, 274 K)

 
13.3 Explosives Detonation

  • AP-42 13.3 Final Section - February 1980 (PDF) (5 pp, 68 K)

13.4 Wet Cooling Towers

  • AP-42 13.4 Final Section - January 1995 (PDF) (6 pp, 118 K)

 
13.5 Industrial Flares

  • AP-42 13.5 Final Section - February 2018 (PDF) (13 pp, 150 K)
  • Background Documentation - February 2018 (ZIP) (zip)  (142 pp, 3 MB)
  • Related Information - AP-42 13.5 Update April 2015
    •  AP-42 13.5 Update February 2018

​​​​​​​

Flare Efficiency Study, EPA 600/2-83-052 - July 1983 (PDF) (142 pp, 3 MB) - Primary reference for the section.

Air Emissions Factors and Quantification

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  • AP-42
  • Emissions Estimation Tools
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Last updated on March 25, 2025
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