Processed on 2024-03-04 13:09:26 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 Iowa spent in each AQI category during the the month of January.

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.

January in Iowa

January 2014 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 117 38 0 0 0 0 0
New 77 78 0 0 0 0 0

January 2015 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 53 36 0 0 0 0 4
New 23 66 0 0 0 0 4

January 2016 – 18 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 100 86 0 0 0 0 0
New 62 124 0 0 0 0 0

January 2017 – 10 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 87 74 0 0 0 0 87
New 52 109 0 0 0 0 87

January 2018 – 20 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 148 68 0 0 0 0 32
New 99 117 0 0 0 0 32

January 2019 – 10 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 153 58 0 0 0 0 6
New 108 103 0 0 0 0 6

January 2020 – 20 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 127 53 0 0 0 0 6
New 96 84 0 0 0 0 6

January 2021 – 10 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 142 94 0 0 0 0 74
New 105 131 0 0 0 0 74

January 2022 – 11 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 213 34 1 0 0 0 0
New 174 73 1 0 0 0 0

January 2023 – 11 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 200 102 0 0 0 0 8
New 151 151 0 0 0 0 8