Stay updated with real-time air quality in Denville, 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)
21
Good
Denville, New Jersey
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.92 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
14.13 μg/m³
0
55
155
255
425
605+
23.03 ppb
0
55
71
86
201
201+
0.30 ppb
0
36
76
186
605
1005+
4.73 ppb
0
54
101
361
1250
2050+
0.34 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Denville, New Jersey
Denville, New Jersey
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AQI 22
Good
3.74μg/m³
PM2.5
19.47μg/m³
PM10
18.73ppb
O3
0.38ppb
SO2
3.17ppb
NO2
0.26ppm
CO
AQI 22
Good
3.66μg/m³
PM2.5
21.94μg/m³
PM10
20.86ppb
O3
0.36ppb
SO2
4.99ppb
NO2
0.26ppm
CO
AQI 22
Good
3.57μg/m³
PM2.5
21.75μg/m³
PM10
21.32ppb
O3
0.36ppb
SO2
4.76ppb
NO2
0.26ppm
CO
AQI 20
Good
3.41μg/m³
PM2.5
12.64μg/m³
PM10
21.96ppb
O3
0.36ppb
SO2
4.54ppb
NO2
0.26ppm
CO
AQI 22
Good
3.79μg/m³
PM2.5
11.40μg/m³
PM10
21.59ppb
O3
0.38ppb
SO2
4.64ppb
NO2
0.27ppm
CO
AQI 21
Good
3.37μg/m³
PM2.5
12.24μg/m³
PM10
23.00ppb
O3
0.36ppb
SO2
3.45ppb
NO2
0.26ppm
CO
The air quality data for New Jersey, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Denville, New Jersey are available every hour.
Denville, New Jersey experienced its worst air quality at 10:00:00, 2026-09-19.
The best air quality in Denville, New Jersey was observed at 03:00:00 on 2026-09-20.
The air quality in Denville, New Jersey right now is Good, with an AQI of 21.
In Denville, New Jersey, O3 is the most frequently found pollutant.
When air quality in Denville, New Jersey is compromised, staying indoors and wearing a mask can reduce health risks.
Denville, New Jersey currently has a PM2.5 concentration of 2.925 μg/m3.
Denville, New Jersey currently has a PM10 concentration of 14.127 μg/m3.
The current carbon monoxide (CO) level in Denville, New Jersey is 0.335 ppm.
The current sulfur dioxide (SO2) concentration in Denville, New Jersey is 0.299 ppb.
Denville, New Jersey currently has an ozone (O3) concentration of 23.033 ppm.
The current level of nitrogen dioxide (NO2) in Denville, New Jersey is 4.727 ppb.
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