Processed on 2024-03-04 12:44:01 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 Alabama spent in each AQI category during the the month of July.

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.

July in Alabama

July 2014 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 121 116 1 0 0 0 18
New 68 169 1 0 0 0 18

July 2015 – 15 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 141 149 6 2 0 0 22
New 70 220 6 1 1 0 22

July 2016 – 23 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 250 80 0 0 0 0 22
New 154 176 0 0 0 0 22

July 2017 – 12 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 229 102 0 0 0 0 53
New 152 179 0 0 0 0 53

July 2018 – 22 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 197 107 0 0 0 0 16
New 93 211 0 0 0 0 16

July 2019 – 10 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 192 116 0 0 0 0 12
New 110 198 0 0 0 0 12

July 2020 – 21 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 222 92 0 0 0 0 38
New 150 164 0 0 0 0 38

July 2021 – 11 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 199 82 0 0 0 0 39
New 134 147 0 0 0 0 39

July 2022 – 20 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 289 22 0 0 0 0 73
New 213 98 0 0 0 0 73

July 2023 – 14 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 221 134 4 0 0 0 57
New 154 201 4 0 0 0 57