Zion National Park Air Quality Monitoring
Air Atlas is a GIS database of air quality estimates for 270 parks that are part of the NPS Inventory and Monitoring Program. These estimates can be used when on-site monitoring data is not available.
Atmospheric Deposition Monitoring
Deposition of pollutants, including sulfur and nitrogen, is not measured in Zion NP. However, information from deposition measurements at Bryce Canyon NP and Canyonlands NP can be used to estimate deposition at Zion NP. Wet deposition has been monitored in Bryce Canyon NP (1985-present), the closest NADP site to Zion NP, as part of the National Atmospheric Deposition Program/National Trends Network (NADP/NTN). The site ID is UT99. Dry deposition rates have been estimated for Canyonlands NP (site #CAN407), 1995-present, as part of the Clean Air Status and Trends Networks (CASTNet). The Canyonlands NP site is the closest CASTNet site to Zion NP.
- National Atmospheric Deposition Program/National Trends Network --Site Overview and Data
- EPA Clean Air Status and Trends Network (CASTNET) Overview --Site Overview and Data
Optical monitoring to collect baseline data on night sky brightness at Zion NP is scheduled for completion in fall 2005, with a report due in 2006. The optical measurement produces not only a measure of night sky brightness and identification of light pollution sources, but also produces a measure of the effect on light scattering caused by fine particulates and other air pollutants, and moisture.
An ozone monitor was installed in Zion NP in 2003. In addition, estimates of ozone for the park are available at the NPS Air Atlas website.
Visual air quality in Zion NP has been monitored using an aerosol sampler (2000-present), and a 35mm camera (1985-1991).