Processed on 2024-03-04 13:44:38 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 York 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 York

October 2014 – 16 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 424 21 0 0 0 0 35
New 385 60 0 0 0 0 35

October 2015 – 20 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 524 24 0 0 0 0 28
New 499 49 0 0 0 0 28

October 2016 – 37 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 534 32 0 0 0 0 42
New 502 64 0 0 0 0 42

October 2017 – 23 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 658 7 0 0 0 0 39
New 591 74 0 0 0 0 39

October 2018 – 41 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 301 1 0 0 0 0 370
New 286 16 0 0 0 0 370

October 2019 – 23 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 597 5 0 0 0 0 38
New 570 32 0 0 0 0 38

October 2020 – 36 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 539 10 0 0 0 0 27
New 524 25 0 0 0 0 27

October 2021 – 20 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 583 13 0 0 0 0 44
New 524 72 0 0 0 0 44

October 2022 – 26 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 721 20 0 0 0 0 59
New 618 123 0 0 0 0 59

October 2023 – 27 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 615 55 0 0 0 0 130
New 528 142 0 0 0 0 130