ARB Miscellaneous Processes Methodologies —
Unpaved  Road and Traffic Area Dust

                                       This page last reviewed June 29, 2016


   Non-Farm Roads
December 2012 Update (PDF - 379 KB)
San Joaquin Valley, May 2004 (PDF - 102 KB)
August 1997 Update (PDF - 56 KB)
     

    Farm Roads
December 2013 Update (PDF - 249 KB)
August 1997 Update (PDF - 46 KB)

    Supporting Documentation

2007 SJV Harvested Crop Acreage (PDF - 223 KB)

2005 Non-SJV Harvested Crop Acreae (PDF - 681 KB)

Farm Roads VMT Factors (PDF - 71 KB)


Crop Calendars (PDF - 175 KB)

2006 PM2.5 Speciation Profile Update (PDF - 179 KB)

Detailed Documentation for the SJV 2003 SIP Revision (PDF - 214 KB)

    Private Unpaved Roads
San Joaquin Valley, May 2004 (PDF - 100 KB)


The following districts have also provided methodologies. Click on each methodology to view.


   Bay Area Air Quality Management District
Unpaved Road Dust (August 2001)



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