The Ozone Weekend Effect in California

This page last reviewed May 4, 2011

Reverse Chronological Record of Weekend Effect Work Group Meetings

• February 20, 2002 Work Group Meeting
  • Notice (with directions and dial-in information) (pdf - 34k)
  • Agenda (pdf - 11k)
  • Presentations
    • DRI/STI (pdf - 782k)
    • Envair (pdf - 296k)
    • Environ (pdf - 1,416k)
    • UCB (html - 529k)

• October 23, 2001 Work Group Meeting
  • Notice (with directions and dial-in information) (pdf - 34k)
  • Agenda (pdf - 8k)
  • Presentations
    • Environ (pdf - 381k)
    • DRI (html - 1040k)
    • STI (html - 628k)
    • Envair (html - 712k)

• May 21, 2001 Kick-Off Meeting for ARB WD/WE activity contracts with STI
  • Synopsis of meeting (pdf - 6k)
  • STI presentations
    • NREL project (html - 588k)
    • ARB Micro-scale project (html - 352k)
    • ARB Macro-scale project (html - 518k)

• September 6, 2000 Work Group Meeting
  • Notice (with Dial-In Information)
  • Agenda (pdf - 7k)
  • DRI Report
    • Part 1 (pdf - 15k)
    • Part 2 (pdf - 48k)
    • Part 3 (pdf - 391k)
    • Part 4 (pdf - 27k)
    • Part 5 (pdf - 41k)
    • Part 6 (pdf - 14k)
    • Appendix (pdf - 198k)
  • AER Report (pdf - 32k)
  • Presentations
    • DRI (ppt97 - 235k) or (html - 543k) and (ppt97 - 195k) or (html - 318k)
    • STI (ppt97 - 842k) or (pdf - 486k)
    • AER (ppt97 - 254k) or (html - 594k)

• April 13, 2000 Work Group Meeting
  • Notice
  • Agenda (pdf - 4k)
  • Draft ARB Report on Ozone Weekend Effect in California
  • Presentations
    • ARB
      • Trends in Ambient Ozone (ppt97 - 105k) or (html - 274k)
      • Trends in Ozone Precursors (ppt97 - 760k) or (html - 384k)
      • VOC/NOx Analysis (ppt97 - 1631k) or (html - 261k)
      • Traffic Pattern Versus Air Quality (ppt97 - 30k) or (html - 354k)
      • Status of ARB's Summary Report of Completed Analyses (ppt97 - 52k) or (html - 63k)
      • Improved Detection Limits for Automated TNMOC Analyzer (pdf - 116k)
    • DRI (ppt97 - 80k) or (html - 161k) and (ppt97 - 192k) or (html - 328k)
    • STI (pdf - 2812k)
    • Envair (pdf - 671k)
    • AER (ppt97 - 432k) or (html - 716k)

• March 1, 2000 Work Group Meeting
  • Notice
  • Agenda
  • Presentations
    • DRI
    • STI (pdf - 4k), and (ppt97 - 573k) or (html - 59k)
    • Environ (pdf - 121k)
    • Envair (pdf - 390k)
    • ARB
      • Ozone-conducive days (pdf - 211k)
      • Traffic analyses  (pdf - 273k)
      • Report outline (pdf - 4k)
• November 16, 1999 Work Group Meeting
  • Notice
  • Agenda
  • Documents
    • Additional Clarification of Hypotheses (pdf - 51k)
    • Preliminary Analysis of Hourly Traffic Data (pdf - 66k)
    • Day-Of-Week Patterns of Particulate Matter (pdf - 53k)
  • Presentations - Research Background, Work Plans, etc.
    • DRI - E. Fujita (ppt97 - 436k) or (html - 354k)
    • STI - L. Chinkin (pdf - 227k)
    • AER - B. Pun (ppt97 - 287k) or (pdf - 63k)
    • ENVAIR - C. Blanchard (pdf - 270k)
    • ENVIRON - G. Yarwood (ppt97 - 125k) or (html - 150k)
• September 22, 1999 Work Group Meeting
  • Notice
  • ARB Workplan Comments (pdf - 50k)
  • ARB Workplan Modifications (pdf - 109k)
  • Data Analyses:
    • VOC &VOC/NO_Y (msw97 - 4204k)
    • NO₂/NO Ratios (pdf - 38k)
    • Ozone Carryover Aloft (revised 10/1/99) (pdf - 186k)
    • Air Toxics (revised 9/29/99) (pdf - 73k)
    • Particulate Matter Mass and Species (pdf - 227k)
    • LDV & HDT Traffic Counts (revised 9/23/99) (pdf - 27k)
    • Remaining Tasks (pdf - 10k)
  • Modeling Plan (revised 9/22/99) (pdf - 19k)
• June 23, 1999 Public Workshop
  • Notice
  • Air Quality Data Analysis (pdf - 119k)
  • Mobile Source Activity (ppt97 - 112k) or (html - 499k)
  • Light Duty Vehicles (pdf - 54k)
  • Heavy Duty Trucks (ppt97 - 491k)
  • Modeling Plans (msw97 - 20k) or (html - 3k)
• ARB Workplan (ppt97 - 47k) or (html - 87k)

If you have questions, please contact:
Mr. Leon Dolislager Research Division
California Air Resources Board
P.O. Box 2815
Sacramento CA 95812
(916) 323-1533