California Almanac of Emissions and Air Quality - 2013 Edition
This almanac was prepared and published by the staff of the Air Quality Planning and Science Division, California Air Resources Board. Principal authors: Paul Andrews, Andy Delao, and Anna Komorniczak.
This document has been reviewed and approved by CARB staff. Approval does not signify that the contents necessarily reflect the views and policies of CARB.
The almanac is currently available for download in PDF format. You may download the contents of each section in PDF format by selecting on the links provided below. The PDF files may be navigated page-by-page or with the bookmark navigation pane which will open automatically.
In addition to the PDF files, individual data tables from the almanac are available for download in comma separated (.csv) formats. The tables for each chapter and appendix can be accessed by selecting the links below to the Preface and Table of Contents or the links to the individual chapters and appendices. Alternatively, you may download a zipped version of all the tables in CSV format.
Notice: Early versions of the CD and web version of the 2013 Almanac had some incorrect emissions values. For more details on changes made, see the Errata Sheet (PDF - 23kb).
- Preface and Table of Contents
- Chapter 1: Introduction
- Chapter 2: Current Emissions and Air Quality
- Chapter 3: Statewide Emission Trends and Forecasts
- Chapter 4: Regional Trends and Forecasts
- Appendix A: Air Quality Trend Data by Pollutant: Ozone, PM2.5, CO, NO2, SO2
- Appendix B: County Level Emissions and Air Quality by Air Basin
- Appendix C: Surface Area, Population, and Average Daily Vehicle Miles Traveled
- Appendix D: Natural Sources
- Appendix E: Lists of Figures and Tables for Chapters 1 through 4
The air quality trends presented in The California Almanac of Emissions and Air Quality - 2013 Edition represent a summary of data collected at a number of monitoring sites. Whenever data are summarized, the results can be influenced by many factors, including the number of monitoring sites in the network, the opening and closing of critical sites, and the completeness of the data. The following document, updated during December 1998, provides information that is helpful for interpreting air quality trends in the 2013 Almanac.