Processed on 2024-03-04 13:57:19 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 Rhode Island 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 Rhode Island

January 2014 – 2 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 58 3 0 0 0 0 1
New 55 6 0 0 0 0 1

January 2015 – 2 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 57 1 0 0 0 0 4
New 51 7 0 0 0 0 4

January 2016 – 7 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 33 7 0 0 0 0 22
New 24 16 0 0 0 0 22

January 2017 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 60 1 0 0 0 0 1
New 56 5 0 0 0 0 1

January 2018 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 100 19 0 0 0 0 5
New 78 41 0 0 0 0 5

January 2019 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 117 3 0 0 0 0 4
New 99 21 0 0 0 0 4

January 2020 – 10 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 123 13 0 0 0 0 19
New 106 30 0 0 0 0 19

January 2021 – 5 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 138 14 0 0 0 0 3
New 124 28 0 0 0 0 3

January 2022 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 112 12 0 0 0 0 0
New 101 23 0 0 0 0 0

January 2023 – 7 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 162 5 0 0 0 0 19
New 151 16 0 0 0 0 19