Background Material: Almanac of Emissions and Air Quality
2013 Edition
Preface and Table of Contents

This page last reviewed February 7, 2014

Download Preface and Table of Contents (PDF - 114 KB)


PREFACE


This almanac was prepared and published by the Air Resources Board (ARB) staff to aid air quality professionals and the public in evaluating air quality in California (State). The ARB, as part of the California Environmental Protection Agency (CalEPA), is the State board responsible for achieving and maintaining healthful air quality in California. This responsibility is shared with local air districts and the United States Environmental Protection Agency (U.S. EPA).

The following staff and managers of the Air Quality Planning and Science Division contributed to the production of this almanac: Jagjeet Arce, Stephen Francis, Martin Johnson, Vivian Lerch, LinYing Li, Elizabeth Melgoza, Chris Nguyen, Michael Redgrave, Jon Taylor, and Xijie Zhang. The project was approved by Kurt Karperos, Chief of the Air Quality Planning and Science Division. The project was managed by Karen Magliano, Assistant Division Chief, Carla Takemoto, Chief of the Area Source & Emission Inventory Programs Branch, Sylvia Vanderspek, Chief of the Air Quality Planning Branch, Stephen Zelinka, Manager of the Emission Inventory Development Section, Mena Shah, Manager of the Air Quality & Statistical Studies Section, and Gayle Sweigert, Manager of the Air Quality Analysis Section.

This is the eleventh edition of this almanac which is updated annually as additional air quality and emission inventory data become available. If you find errors or have suggestions for improvements, please let us know. For general issues or issues related to air quality data, contact Paul Cox at (916) 327-7609 or pcox@arb.ca.gov. For issues related to emissions data, contact Andy Delao at (916) 324-7169 or adelao@arb.ca.gov.

TABLE OF CONTENTS (click on the links to the Chapter/Appendix pages to view the PDF files and download the tables)

Chapter 1: Introduction (PDF, 3.5 MB)

  1. Overview
  2. Organization
  3. California Facts and Figures
  4. Quick Facts
  5. Interpreting the Emission and Air Quality Statistics
  6. Meteorology's Role in Air Quality
  7. Sources of Emissions in California
  8. Air Quality Monitoring
  9. California Air Basins
  10. Criteria Air Pollutants
    1. National Ambient Air Quality Standards
      1. Ozone
      2. Ozone National Area Designations
      3. Particulate Matter (PM2.5)
      4. Particulate Matter (PM2.5) Area Designations
      5. Carbon Monoxide, Nitrogen Dioxide, and Sulfur Dioxide
      6. Air Quality Standards Table
  11. Web Resources

Chapter 2: Current Emissions and Air Quality (PDF - 236 KB)

  1. Introduction
  2. Emission Sources
    1. NOx Sources Statewide
    2. VOC Sources Statewide
    3. Directly Emitted Particulate Matter (PM2.5)
    4. Directly Emitted Particulate Matter (PM10)
    5. SOx Sources Statewide
    6. Ammonia Sources Statewide
    7. Diesel PM Sources Statewide
    1. 2012 Statewide Emission Inventory
    2. 2012 Statewide Emission Inventory by Sub-Category
  3. 2011 Statewide Air Quality
    1. Ozone
    2. Particulate Matter (PM2.5)
    3. Carbon Monoxide (CO), Nitrogen Dioxide (NO2), Sulfure Dioxide (SO2)

Chapter 3: Statewide Trends and Forecasts (PDF - 819 KB)

  1. Introduction
    1. Emission Trends and Forecasts
    2. Statewide Population and VMT
  2. Emission Trends and Forecasts
    1. NOx
    2. VOC
    3. Directly Emitted Particulate Matter (PM2.5)
    4. Directly Emitted Particulate Matter (PM10)
    5. Diesel PM
    6. Sulfur Dioxide
    7. Ammonia

Chapter 4: Regional Trends and Forecasts (PDF - 4.9 MB)

  1. Introduction
  2. South Coast Air Basin
    1. Introduction
    2. Emissions Trends and Forecasts
      1. Basinwide Trends/Population and Vehicle Miles Traveled
      2. Ozone Precursor Emissions
      3. Directly Emitted PM2.5 Emissions
      4. Diesel PM Emissions
      5. Ammonia Emissions
    3. Air Quality
      1. Ozone
      2. Particulate Matter (PM2.5)
      3. Nitrogen Dioxide
  3. San Francisco Bay Area Air Basin
    1. Introduction
    2. Emissions Trends and Forecasts
      1. Basinwide Trends/Population and Vehicle Miles Traveled
      2. Ozone Precursor Emissions
      3. Directly Emitted PM2.5 Emissions
      4. Diesel PM Emissions
      5. Ammonia Emissions
    3. Air Quality
      1. Ozone
      2. Particulate Matter (PM2.5)
      3. Nitrogen Dioxide
  4. San Joaquin Valley Air Basin
    1. Introduction
    2. Emissions Trends and Forecasts
      1. Basinwide Trends/Population and Vehicle Miles Traveled
      2. Ozone Precursor Emissions
      3. Directly Emitted PM2.5 Emissions
      4. Diesel PM Emissions
      5. Ammonia Emissions
    3. Air Quality
      1. Ozone
      2. Particulate Matter (PM2.5)
      3. Nitrogen Dioxide
  5. San Diego Air Basin
    1. Introduction
    2. Emissions Trends and Forecasts
      1. Basinwide Trends/Population and Vehicle Miles Traveled
      2. Ozone Precursor Emissions
      3. Directly Emitted PM2.5 Emissions
      4. Diesel PM Emissions
      5. Ammonia Emissions
    3. Air Quality
      1. Ozone
      2. Particulate Matter (PM2.5)
      3. Nitrogen Dioxide
  6. Sacramento Valley Air Basin
    1. Introduction
    2. Emissions Trends and Forecasts
      1. Basinwide Trends/Population and Vehicle Miles Traveled
      2. Ozone Precursor Emissions
      3. Directly Emitted PM2.5 Emissions
      4. Diesel PM Emissions
      5. Ammonia Emissions
    3. Air Quality
      1. Ozone
      2. Particulate Matter (PM2.5)
      3. Nitrogen Dioxide

Appendix A: Air Quality Trend Data by Pollutant: Ozone, PM2.5, CO, NO2, SO2
(PDF - 176 KB)

  1. Introduction
  2. Ozone
  3. PM2.5
  4. Carbon Monoxide
  5. Nitrogen Dioxide
  6. Sulfur Dioxide

Appendix B: County Level Emissions and Air Quality by Air Basin (PDF - 658 KB)

  1. Introduction
  2. Emission Inventory
    1. 2012 Emissions
    2. VOCs
    3. NOx
    4. SOx
    5. PM2.5
    6. PM10
    7. Diesel PM
    8. Ammonia (NH3)
  3. Air Quality
    1. Great Basin Valleys Air Basin
    2. Lake County Air Basin
    3. Lake Tahoe Air Basin
    4. Mojave Desert Air Basin
    5. Mountain Counties Air Basin
    6. North Central Coast Air Basin
    7. North Coast Air Basin
    8. Northeast Plateau Air Basin
    9. Sacramento Valley Air Basin
    10. Salton Sea Air Basin
    11. San Diego Air Basin
    12. San Francisco Bay Area Air Basin
    13. San Joaquin Valley Air Basin
    14. South Central Coast Air Basin
    15. South Coast Air Basin

Appendix C: Surface Area, Population, and Average Daily Vehicle Miles Traveled (PDF - 181 KB)

  1. Introduction
  2. California Population and Vehicle Miles Traveled
  3. Surface Area by County
  4. Population and Vehicle Miles Traveled by County, Air Basin, and Air District

Appendix D: Natural Sources (PDF - 264 KB)

  1. Introduction
  2. Biogenic Sources
  3. Geogenic Sources
  4. Wildfires

Appendix E: Lists of Figures and Tables for Chapters 1 through 4 (PDF - 147 KB)

  1. List of Figures
  2. List of Tables
  3. Glossary of Air Quality Terms

If you have problems finding materials on this website, please contact us at: webmaster@arb.ca.gov or call (916) 322-3260 or (800) 242-4450.
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