Processed on 2024-03-04 13:28:07 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 Mississippi 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 Mississippi

July 2014 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 59 65 0 0 0 0 4
New 26 98 0 0 0 0 4

July 2015 – 5 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 60 81 0 0 0 0 19
New 21 120 0 0 0 0 19

July 2016 – 10 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 95 23 0 0 0 0 42
New 47 71 0 0 0 0 42

July 2017 – 7 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 116 39 0 0 0 0 5
New 82 73 0 0 0 0 5

July 2018 – 16 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 126 91 0 0 0 0 7
New 59 158 0 0 0 0 7

July 2019 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 168 49 0 0 0 0 7
New 107 110 0 0 0 0 7

July 2020 – 16 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 177 40 0 0 0 0 7
New 125 92 0 0 0 0 7

July 2021 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 161 54 0 0 0 0 9
New 120 95 0 0 0 0 9

July 2022 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 244 4 0 0 0 0 8
New 202 46 0 0 0 0 8

July 2023 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 145 97 0 0 0 0 14
New 85 157 0 0 0 0 14