Processed on 2024-03-04 12:47:58 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 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 Arkansas

July 2014 – 7 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 76 77 0 0 0 0 7
New 47 106 0 0 0 0 7

July 2015 – 5 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 72 83 0 0 0 0 5
New 25 130 0 0 0 0 5

July 2016 – 10 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 105 50 0 0 0 0 5
New 35 120 0 0 0 0 5

July 2017 – 5 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 99 54 0 0 0 0 7
New 43 110 0 0 0 0 7

July 2018 – 10 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 89 59 2 0 0 0 10
New 41 107 2 0 0 0 10

July 2019 – 5 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 106 31 0 0 0 0 23
New 46 91 0 0 0 0 23

July 2020 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 87 32 0 0 0 0 9
New 50 69 0 0 0 0 9

July 2021 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 43 46 0 0 0 0 7
New 29 60 0 0 0 0 7

July 2022 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 69 14 0 0 0 0 13
New 32 51 0 0 0 0 13

July 2023 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 67 53 0 0 0 0 8
New 39 81 0 0 0 0 8