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Study Areas:
Pollutants:
Other Related Data :
UDAQ installed a new monitoring site in Vernal in December 2006. Ozone levels are typically highest in the middle of summer, so it will take time to determine current ozone levels in the Basin.
The National Park Service measured ozone using a portable ozone analyzer beginning in 2005 at Dinosaur National Monument. There were no exceedances of the 8-hour health standard during 2005 or 2006. The average maximum 8-hour average during the summer of 2005 was .055 ppm. This is higher than the average during the summer of 1983 of .045 ppm. The ozone values at Dinosaur show an unexpectedly strong diurnal pattern that is more typical of an urban area rather than a rural area.
In 1983, ozone data were collected at the Naples Elementary School. The 1-hour ozone levels were well below the previous 1-hour standard of 0.12 ppm, so the monitoring was discontinued. The 8-hour average in 1983 was also well below the current ozone standard of .08 ppm.
In 1974-77 monitoring data were collected to support the proposed White River Oil Shale operation. Ozone data were collected at 3 sites. During 1975, ozone values exceeded the current 8-hour ozone standard. The site with the highest ozone readings also had the highest NOx readings. This may indicate that the area is sensitive to NOx.
Rural ozone levels have been increasing across the west. The background levels of ozone in the Uintah Basin may be higher than what was found in the late 1970's and early 1980's. Click here for a discussion of regional ozone issues.