Stay updated with real-time air quality in Montclair, New Jersey featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.
Live AQI (Air Quality Index)
27
Good
Montclair, New Jersey
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.15 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
21.87 μg/m³
0
55
155
255
425
605+
19.17 ppb
0
55
71
86
201
201+
0.29 ppb
0
36
76
186
605
1005+
7.60 ppb
0
54
101
361
1250
2050+
0.36 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Montclair, New Jersey
Montclair, New Jersey
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AQI 27
Good
5.01μg/m³
PM2.5
22.16μg/m³
PM10
21.40ppb
O3
0.35ppb
SO2
5.16ppb
NO2
0.27ppm
CO
AQI 27
Good
5.18μg/m³
PM2.5
22.98μg/m³
PM10
20.96ppb
O3
0.35ppb
SO2
5.05ppb
NO2
0.27ppm
CO
AQI 27
Good
4.94μg/m³
PM2.5
21.68μg/m³
PM10
21.17ppb
O3
0.35ppb
SO2
5.30ppb
NO2
0.26ppm
CO
AQI 27
Good
4.99μg/m³
PM2.5
21.98μg/m³
PM10
21.26ppb
O3
0.36ppb
SO2
4.29ppb
NO2
0.27ppm
CO
AQI 27
Good
4.85μg/m³
PM2.5
21.62μg/m³
PM10
21.12ppb
O3
0.35ppb
SO2
5.40ppb
NO2
0.27ppm
CO
AQI 27
Good
5.22μg/m³
PM2.5
23.03μg/m³
PM10
20.74ppb
O3
0.36ppb
SO2
4.29ppb
NO2
0.27ppm
CO
Air quality data and pollutant measurements for New Jersey, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Montclair, New Jersey is updated every hour.
The worst air quality in Montclair, New Jersey in the last 24 hours was observed at 09:00:00 on 2026-09-20.
In the last 24 hrs, the best air quality in Montclair, New Jersey was observed at 12:00:00 on 2026-09-20.
The current air quality in Montclair, New Jersey is 27, categorized as Good based on real-time data.
The most common pollutant in Montclair, New Jersey is PM2.5.
If the air quality in Montclair, New Jersey is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Montclair, New Jersey is 5.154 μg/m3.
The current PM10 concentration at Montclair, New Jersey is 21.874 μg/m3.
The current carbon monoxide (CO) concentration at Montclair, New Jersey is 0.357 ppm.
The current sulfur dioxide (SO2) concentration at Montclair, New Jersey is 0.294 ppb.
The current ozone (O3) concentration at Montclair, New Jersey is 19.171 ppm.
The current nitrogen dioxide (NO2) concentration at Montclair, New Jersey is 7.6 ppb.
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