Processed on 2024-03-04 13:40:36 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 August.

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.

August in New Jersey

August 2014 – 7 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 131 57 0 0 0 0 36
New 84 104 0 0 0 0 36

August 2015 – 11 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 233 71 0 0 0 0 16
New 164 140 0 0 0 0 16

August 2016 – 24 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 316 23 0 0 0 0 45
New 211 128 0 0 0 0 45

August 2017 – 12 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 252 56 0 0 0 0 76
New 171 137 0 0 0 0 76

August 2018 – 24 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 198 132 0 0 0 0 54
New 134 196 0 0 0 0 54

August 2019 – 12 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 303 47 0 0 0 0 34
New 204 146 0 0 0 0 34

August 2020 – 23 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 263 31 0 0 0 0 90
New 169 125 0 0 0 0 90

August 2021 – 14 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 325 62 0 0 0 0 61
New 226 161 0 0 0 0 61

August 2022 – 16 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 357 31 0 0 0 0 28
New 274 114 0 0 0 0 28

August 2023 – 17 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 386 104 0 0 0 0 54
New 297 193 0 0 0 0 54