Processed on 2024-03-04 12:48:27 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 Arkansas spent in each AQI category during the the month of October.

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.

October in Arkansas

October 2014 – 7 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 118 37 0 0 0 0 5
New 79 76 0 0 0 0 5

October 2015 – 5 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 117 33 0 0 0 0 10
New 79 71 0 0 0 0 10

October 2016 – 10 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 102 53 0 0 0 0 5
New 53 102 0 0 0 0 5

October 2017 – 5 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 102 31 0 0 0 0 27
New 79 54 0 0 0 0 27

October 2018 – 10 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 145 0 0 0 0 0 15
New 117 28 0 0 0 0 15

October 2019 – 5 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 107 15 0 0 0 0 6
New 91 31 0 0 0 0 6

October 2020 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 95 16 0 0 0 0 17
New 68 43 0 0 0 0 17

October 2021 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 82 11 0 0 0 0 3
New 62 31 0 0 0 0 3

October 2022 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 84 22 0 0 0 0 22
New 57 49 0 0 0 0 22

October 2023 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 76 26 0 0 0 0 26
New 55 47 0 0 0 0 26