Fugitive Dust Handbook

Chapter 2.0   AGRICULTURAL TILLING

The current version of AP-42 (the 5th edition) does not address agricultural tilling even though a PM10 emission factor for fugitive dust generated by agricultural tilling was developed by Midwest Research Institute in 1983 and adopted by the USEPA in the 4th edition of AP-42. Thus, the methodology adopted by the California Air Resources Board in January 2003 is presented as the primary emissions estimation methodology in lieu of an official EPA methodology for this fugitive dust source category. The sample control measure cost-effectiveness calculation spreadsheet presented for this source category involves reducing the number of tilling passes by 25% (i.e., a conservation tilling control measure).