Processed on 2024-03-04 13:58:19 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 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 Rhode Island

July 2014 – 2 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 60 2 0 0 0 0 2
New 59 3 0 0 0 0 2

July 2015 – 2 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 55 7 0 0 0 0 2
New 43 19 0 0 0 0 2

July 2016 – 7 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 50 1 0 0 0 0 13
New 42 9 0 0 0 0 13

July 2017 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 109 12 0 0 0 0 7
New 88 33 0 0 0 0 7

July 2018 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 98 22 0 0 0 0 8
New 72 48 0 0 0 0 8

July 2019 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 94 25 0 0 0 0 9
New 68 51 0 0 0 0 9

July 2020 – 10 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 139 8 0 0 0 0 13
New 110 37 0 0 0 0 13

July 2021 – 5 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 116 34 4 0 0 0 6
New 85 65 4 0 0 0 6

July 2022 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 111 11 0 0 0 0 6
New 90 32 0 0 0 0 6

July 2023 – 7 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 140 31 5 0 0 0 16
New 112 59 5 0 0 0 16