Ozone Monitoring in Wyoming Cara Casten Wyoming Dept of Environmental Quality – Air Quality Division


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Ozone Monitoring in Wyoming

  • Cara Casten

  • Wyoming Dept. of Environmental Quality – Air Quality Division

  • March 10, 2004


Introduction

  • Monitoring

  • Data from both reference and non-reference method sites

  • Photos of wildfire related ozone events





Ozone Monitors in Wyoming

  • Thunder Basin National Grasslands

  • Sponsor: WDEQ-AQD

  • Period: 5/4/01-present

  • Site: Part of visibility monitoring network in Northeastern Wyoming grasslands; other monitors at site include NOx, nephelometer, transmissometer, digital camera, meteorological, and IMPROVE aerosol.

  • Reference Method?: Yes



Ozone Monitors in Wyoming

  • Campbell County

  • Sponsor: WDEQ-AQD

  • Period: 7/16/03-present

  • Site: Located south of Gillette in an area of high coalbed methane activity; other monitors at site include NOx, PM10, and meteorological.

  • Reference Method?: Yes



Ozone Monitors in Wyoming

  • Green River Basin Visibility Site

  • Sponsor: WDEQ-AQD

  • Period: 08/01/98-12/31/01

  • Site: Part of visibility network in Green River Basin; other monitors at site include NOx, nephelometer, transmissometer, aerosol, optical and meteorological

  • Reference Method?: Yes



Ozone Monitors in Wyoming

  • Yellowstone National Park CASTNet

  • Sponsor: NPS

  • Period: 1996-present

  • Site: Part of network at the “Near Water Tank” site close to the lake. Other monitors at site include IMPROVE aerosol, NADP wet deposition and meteorological

  • Reference Method?: Yes

  • Note: Data from this site was provided by the NPS-Air Resources Division



Ozone Monitors in Wyoming

  • Pinedale CASTNet

  • Sponsor: EPA

  • Period: 1989-present

  • Site: Located in Wind River Range outside of the town of Pinedale, close to the Bridger Wilderness Area (Class I).

  • Reference Method?: No. Reference method monitor, but less strict maintenance.

  • Note: Data from this site was provided by CASTNet



Ozone Monitors in Wyoming

  • Centennial CASTNet

  • Sponsor: EPA

  • Period: 1989-present

  • Site: Located in Snowy Range north of the front range of Colorado, close to the Savage Run Wilderness Area (Class I).

  • Reference Method?: No. Reference method monitor, but less strict maintenance.

  • Note: Data from this site was provided by CASTNet



Time series data for Green River Basin, Thunder Basin, and Yellowstone









Summary and Comparison of maximums from 2000, 2001, and 2002



2000 Top 1 hr. and 8hr. Maximums



2001 Top 1 hr. and 8hr. Maximums



2002 Top 1 hr. and 8hr. Maximums



2000 Top 1 hr. and 8hr. Maximums



2001 Top 1 hr. and 8hr. Maximums



Thunder Basin Ozone measurements and corresponding images when wildfires burned in northeast Wyoming



Thunder Basin July 5, 2001





July 19, 2002 (12:00-12:45 pm)



July 19, 2002 (3:00-3:45 pm)



Future Plans for WDEQ Ozone Monitoring in Wyoming

  • Existing Monitors: WDEQ plans to continue monitoring at these sites.

  • Proposed Monitoring: The Legislature is reviewing a request for funding for monitors in the following locations:

    • Jonah Field: Area of oil and gas development outside of Pinedale
    • Wamsutter: Area of oil and gas development in the south-central area of Wyoming
    • Newcastle: Downwind of coalbed methane development, on the border of South Dakota




Questions?



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