Disclaimer
        Abstract
        Glossary of Terms
        Acknowledgments
        Table of Contents (msw97-29k) or (pdf - 16k)

        Executive Summary

1. Introduction and Background(msw97-526k) or (pdf - 453k)

 
2. Objectives of Report (msw97-29k) or (pdf - 4k)

 
3. Hypotheses of Causes of Ozone Weekend Effect (msw97-335k) or (pdf - 121k)

 

 

Recent ARB Research Efforts (Chapters 4 - 8):
 

4. Characterization of the Ozone Weekend Effect in California

4.1 The Weekday-Weekend Behavior of Ambient Ozone Concentrations in California (msw97-694k) or (pdf - 300k)
4.2 The Weekend Ozone Effect during Ozone-Conducive Days in the South
      Coast Air Basin (msw97-360k) or (pdf - 216k)
4.3 Trends in Ambient Ozone Concentrations in the South Coast Air Basin (msw97-2448k) or (pdf - 199k)
 
5. Analysis of Variations in Ozone and Ozone Precursors

5.1 Diurnal Patterns of Ozone & Precursors in SoCAB (msw97-73k) or (pdf - 38k) and (msw97-421k) or (pdf - 440k)
5.2 Ozone Precursor Trends (msw97-51k) or (pdf - 22k) and (msw97-1181k) or (pdf - 376k)
5.3 Analysis of VOC to NO_x Ratios in the South Coast Air Basin (msw97-188k) or (pdf - 144k)
5.4 WD/WE Differences in Hydrocarbon Reactivity (msw97-96k) or (pdf - 9k)
 
6. Analysis of Variations in Particulate Matter

6.1 Day-of-Week Patterns of Particulate Matter and its Species at
     Selected Sites (msw97-61k) or (pdf - 37k) and (pdf - 323k)
 
7. Analysis of Variations in Vehicular Activity Patterns

7.1 Day-of-Week Patterns of Heavy-Duty and Non-Heavy-Duty Vehicle
     Activity at Weigh-in-Motion (WIM) Stations Relevant to the South Coast
     Air Basin During the Summer of 1997 (pdf - 87k)
7.2 Analysis of Hourly Traffic Data from the South Coast Air Basin (pdf - 299k)
7.3 Comparison of Hourly Traffic Data with Hourly Ambient Air Quality Data (pdf - 816k)
 
8. Analysis of Other Ancillary Data

8.1 Ozone Carryover and Day-of-Week Phenomena (msw97-95k) or (pdf - 29k) and (pdf - 140k)
8.2 Day-of-Week Patterns for High-Risk Toxic Air Contaminants, 1989 (msw97-150k) or (pdf - 113k)
      through 1998
 
9. Overview of Current Non-ARB Research Efforts (msw97-26k) or (pdf - 3k)

9.1 Weekend/Weekday Ozone Observations in the South Coast Air Basin
     (DRI/STI)
9.2 Data Analysis for a Better Understanding of the Weekday/Weekend O₃
     and PM Differences (AER)
9.3 Proximate Modeling of Weekday versus Weekend Ozone (ENVIRON )
9.4 Data Analysis Complementing Proximate Modeling of Weekday/Weekend Ozone
     Differences  in Southern California (ENVAIR)
 
10. Overview of Findings & Conclusions (msw97-26k) or (pdf - 3k)

 
11. Recommendations (msw97-26k) or (pdf - 2k)

          Appendices:
                    Compendium of previous analyses (msw97-45k) or (pdf - 42k)
                    Figures not included with technical chapters
                    Tables not included with technical chapters