1 / 33

Pinal County Air Quality

Pinal County Air Quality. September 11, 2008 PM 10 Natural/Exceptional Event. September 11, 2008. Strong outflow winds associated with monsoon storm development caused significant areas of blowing dust. The Maximum winds reached 43 mph and five PCAQCD monitor exceeded the 24-hr PM 10 NAAQS.

xavier-caldwell
Download Presentation

Pinal County Air Quality

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Pinal County Air Quality September 11, 2008 PM10 Natural/Exceptional Event

  2. September 11, 2008 • Strong outflow winds associated with monsoon storm development caused significant areas of blowing dust. The Maximum winds reached 43 mph and five PCAQCD monitor exceeded the 24-hr PM10 NAAQS. PM10 24-hr Site AQS Site# Conc. (ug/m3) • PCH 04-021-3011(3) 217.1 • Casa Grande 04-021-0001(3) 202.5 • Combs 04-021-3009(3) 194.7 • Stanfield 04-021-3008(3) 178.2 • Maricopa 04-021-3010(3) 170.4

  3. Start of wall of dust formation

  4. Wall of dust moving East

  5. Wall of dust moving East

  6. Wall of dust moving East

  7. Wall of dust moving East

  8. Wall of dust moving East

  9. Wall of dust moving East

  10. Wall of dust moving East

  11. Wall of dust moving East

  12. Wall of dust moving East

  13. Wall of dust moving East

  14. Wall of dust moving East

  15. Wall of dust moving East

  16. Wall of dust moving East

  17. Wall of dust moving East

  18. Wall of dust moving East

  19. 9/11/08 “But for” Test • PCH (TEOM) had the following 24-hr PM10 concentrations before/after the 9/11/08 natural/exceptional event • 9/10/08 – 33.6 ug/m3 • 9/12/08 – 55.9 ug/m3 • Casa Grande • 9/10/08 - 25.4 ug/m3 • 9/12/08 – 49.0 ug/m3 • Combs • 9/10/08 - 79.5 ug/m3 • 9/12/08 – 75.3 ug/m3 • Stanfield • 9/10/08 - 31.4 ug/m3 • 9/12/08 – 55.1 ug/m3 • Maricopa • 9/10/08 - 30.8 ug/m3 • 9/12/08 – 60.6 ug/m3

More Related