Current 8-Hour Ozone Summary

Through 9/22/19

8- hour Ozone Summary is based on 8-hour averages of raw 1-hour ozone data from the Colorado Department of Public Health and Environment (CDPHE) and consistent with Data Reporting and Handling Conventions outlined in 40 CFR Part 50 – Appendix P.

To view all 2019 weekly tables click here.