Processed on 2024-03-04 12:55:00 PST.

Disclaimer: Data presented here come from a variety of sources and do not represent official EPA measurements. Please visit AirNow for official measurements.

Cumulative exposure to smoke is an important public health metric. This report summarizes the cumulative number of days air quality monitors in Connecticut spent in each AQI category during the the month of November.

The tables below include only permanent monitors measuring PM2.5 and show cumulative exposure under existing NAAQS (National Ambient Air Quality Standards) and under the 2024 revised standards for PM2.5.

In the tables and plots below, ‘Old’ designates cumulative days calculated using the 2023 PM2.5 NAAQS while ‘New’ is calculated using the 2024 revised PM2.5 NAAQS. The impact of the NAAQS revision is quite clear.

November in Connecticut

November 2014 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 161 52 0 0 0 0 35
New 116 97 0 0 0 0 35

November 2015 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 174 53 0 0 0 0 21
New 124 103 0 0 0 0 21

November 2016 – 16 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 143 57 0 0 0 0 48
New 96 104 0 0 0 0 48

November 2017 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 188 21 0 0 0 0 39
New 160 49 0 0 0 0 39

November 2018 – 16 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 217 23 0 0 0 0 8
New 197 43 0 0 0 0 8

November 2019 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 201 39 0 0 0 0 8
New 164 76 0 0 0 0 8

November 2020 – 16 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 190 50 0 0 0 0 8
New 138 102 0 0 0 0 8

November 2021 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 198 41 0 0 0 0 9
New 162 77 0 0 0 0 9

November 2022 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 219 19 0 0 0 0 10
New 188 50 0 0 0 0 10

November 2023 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 212 27 0 0 0 0 9
New 179 60 0 0 0 0 9