ARB Miscellaneous Processes Methodologies —
Unpaved  Road and Traffic Area Dust

                                       This page last reviewed May 13, 2016

    Non-Farm Roads
December 2012 Update(Summary)
San Joaquin Valley, May 2004
August 1997 Update

    Farm Roads
December 2013 Update(Summary)
August 1997 Update(Summary)

    Supporting Documentation

2007 SJV Harvested Crop Acreage

2005 Non-SJV Harvested Crop Acreage

Crop Calendars

2006 PM2.5 Speciation Profile Update

    Private Unpaved Roads
San Joaquin Valley, May 2004

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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