Processed on 2024-03-04 13:08:27 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 Indiana 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 Indiana

July 2014 – 12 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 176 116 4 0 0 0 88
New 122 169 5 0 0 0 88

July 2015 – 13 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 209 148 7 2 0 0 18
New 125 232 7 2 0 0 18

July 2016 – 27 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 310 73 0 0 0 0 33
New 212 171 0 0 0 0 33

July 2017 – 13 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 339 58 0 0 0 0 19
New 217 179 1 0 0 0 19

July 2018 – 27 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 275 117 3 1 0 0 20
New 179 213 3 1 0 0 20

July 2019 – 13 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 252 137 0 0 0 0 27
New 143 246 0 0 0 0 27

July 2020 – 27 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 306 78 1 1 0 0 30
New 223 161 1 1 0 0 30

July 2021 – 13 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 204 194 4 0 0 0 14
New 154 244 4 0 0 0 14

July 2022 – 13 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 198 68 0 0 0 0 22
New 123 143 0 0 0 0 22

July 2023 – 24 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 273 134 28 0 0 0 45
New 199 208 27 1 0 0 45