Processed on 2024-03-04 13:40:55 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 New Jersey spent in each AQI category during the the month of October.

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.

October in New Jersey

October 2014 – 7 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 187 23 0 0 0 0 14
New 146 64 0 0 0 0 14

October 2015 – 11 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 250 30 0 0 0 0 40
New 212 68 0 0 0 0 40

October 2016 – 24 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 260 43 0 0 0 0 81
New 219 84 0 0 0 0 81

October 2017 – 12 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 334 28 0 0 0 0 22
New 265 97 0 0 0 0 22

October 2018 – 24 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 313 11 0 0 0 0 60
New 263 61 0 0 0 0 60

October 2019 – 12 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 329 15 0 0 0 0 40
New 290 54 0 0 0 0 40

October 2020 – 23 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 260 14 0 0 0 0 78
New 220 54 0 0 0 0 78

October 2021 – 14 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 370 37 0 0 0 0 41
New 304 103 0 0 0 0 41

October 2022 – 16 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 356 26 0 0 0 0 34
New 294 88 0 0 0 0 34

October 2023 – 17 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 446 59 0 0 0 0 39
New 363 142 0 0 0 0 39