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2006 Ozone Season Data & SummaryMassAir Online
This page lists the 2006 season daily peak 8-hour-averaged ozone concentrations at MassDEP monitors across Massachusetts, color-coded according to health-based Air Quality Index categories (see Ozone Health Guidelines for an explanation of the colors). Recap of the 2006 Ozone Season Massachusetts monitors measured exceedances of the ozone standard on 12 days during the brief 2006 ozone season, which started late and ended early. Summertime weather patterns that normally provide sunshine and heat, and also trigger ozone episodes, never really materialized until well into June. When it finally turned summery, there were several high ozone days in Massachusetts, but hot weather never seemed to last long as cold fronts regularly crossed the area and prevented lengthy heat waves. Although the ozone season officially extends through September, the final ozone exceedance day occurred on August 7. Color-coded daily peak 8-hour-averaged concentrations at Massachusetts monitors Ozone concentrations are reported in parts per billion (PPB). For example, a concentration of 38 means there was an average of 38 parts of ozone for every billion parts of air on that day at that location. "M" denotes that data is missing for that day at that location because of equipment or network problems, or a newly installed monitor not being operational yet. |
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