This graph represents Aspen’s 8-hour ozone averages for the month of March, 2012 as compared to EPA’s standard. On March 26th, Aspen had its first 8-hour average of 60 ppb for 2012. This is the earliest Aspen has had a reading this high. The range between 60 ppb and 70 ppb is considered by EPA to be of concern for people with respiratory illness.
Review Aspen's historical ozone levels to see how last month's levels stack up to the past.
Please contact Jannette Whitcomb at 970-920-5069 with any ozone questions.