This page last reviewed May 16, 2005

Public Hearing to Consider Amendments to the Ambient Air Quality Standards for Particulate Matter and Sulfates

The Staff of the Air Resources Board (ARB) and the Office of Environmental Health Hazard Assessment (OEHHA) have prepared the staff report entitled "PUBLIC HEARING TO CONSIDER AMENDMENTS TO THE AMBIENT AIR QUALITY STANDARDS FOR PARTICULATE MATTER AND SULFATES," which can be downloaded below. The report contains findings and recommendations for revising the California standards for particulate matter 10 micrometers in diameter and smaller (PM10) and establishing new California standards for particulate matter 2.5 micrometers in diameter and smaller (PM2.5).
In drafting this report and developing the recommendations, public comments were considered. The review and the recommedations contained in the report were peer reviewed by the Air Quality Advisory Committee. Details of the review process are available on the PM Standards Review website.
The recommendations discussed in the report were presented to the Board at a public hearing on June 20, 2002, in El Monte, California.   Please check the links below for the PDF versions of the staff report.

Executive Summary

Click Here for the Executive Summary of the "Public Hearing to Consider Amendments to the Ambient Air Quality Standards for Particulate Matter and Sulfates" in PDF Format (23 KB)

Part One of the Report
(Including the Table of Contents) (Chapters 1 - 6)

Click Here for Chapters 1 - 6 of the "Public Hearing to Consider Amendments to the Ambient Air Quality Standards for Particulate Matter and Sulfates" in PDF Format (1,205 KB)

Part Two of the Report
(Chapters 7 - 9)

Click Here for Chapters 7 - 9 of the "Public Hearing to Consider Amendments to the Ambient Air Quality Standards for Particulate Matter and Sulfates" in PDF Format (1,240 KB).

Appendices 1 - 4

Click Here for Appendices 1 - 4 of the "Public Hearing to Consider Amendments to the Ambient Air Quality Standards for Particulate Matter and Sulfates" in PDF Format (2,401 KB).

Appendix 5

Click Here for Appendix 5 of the "Public Hearing to Consider Amendments to the Ambient Air Quality Standards for Particulate Matter and Sulfates" in PDF Format (2,118 KB)

Appendix 6

Click Here for Appendix 6 of the "Public Hearing to Consider Amendments to the Ambient Air Quality Standards for Particulate Matter and Sulfates" in PDF Format (999 KB)

The Entire Report

Click Here for the Entire Staff Report Entitled "Public Hearing to Consider Amendments to the Ambient Air Quality Standards for Particulate Matter and Sulfates" in PDF Format (7,795 KB)

For more information on review of the PM ambient air quality standards, please contact
Dr. Linda Smith at (916) 327-8225.

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