Processed on 2024-03-04 13:27:15 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 February.

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.

February in Mississippi

February 2014 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 82 29 0 0 0 0 1
New 62 49 0 0 0 0 1

February 2015 – 5 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 78 34 0 0 0 0 0
New 47 65 0 0 0 0 0

February 2016 – 10 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 105 7 0 0 0 0 4
New 74 38 0 0 0 0 4

February 2017 – 7 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 94 9 0 0 0 0 9
New 61 42 0 0 0 0 9

February 2018 – 16 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 170 10 0 0 0 0 16
New 130 50 0 0 0 0 16

February 2019 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 182 12 0 0 0 0 2
New 151 43 0 0 0 0 2

February 2020 – 16 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 187 10 0 0 0 0 6
New 165 32 0 0 0 0 6

February 2021 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 147 46 0 0 0 0 3
New 93 100 0 0 0 0 3

February 2022 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 163 60 1 0 0 0 0
New 104 119 1 0 0 0 0

February 2023 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 177 45 2 0 0 0 0
New 120 102 2 0 0 0 0