Stay updated with real-time air quality in Randolph, 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)
31
Good
Randolph, New Jersey
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.03 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.72 μg/m³
0
55
155
255
425
605+
32.87 ppb
0
55
71
86
201
201+
0.84 ppb
0
36
76
186
605
1005+
16.30 ppb
0
54
101
361
1250
2050+
0.51 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Randolph, New Jersey
Randolph, New Jersey
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AQI 31
Good
4.03μg/m³
PM2.5
16.77μg/m³
PM10
33.41ppb
O3
0.75ppb
SO2
15.38ppb
NO2
0.48ppm
CO
AQI 31
Good
4.03μg/m³
PM2.5
16.76μg/m³
PM10
33.37ppb
O3
0.74ppb
SO2
20.31ppb
NO2
0.47ppm
CO
AQI 31
Good
4.48μg/m³
PM2.5
12.14μg/m³
PM10
33.71ppb
O3
0.78ppb
SO2
21.63ppb
NO2
0.49ppm
CO
AQI 32
Good
4.48μg/m³
PM2.5
12.17μg/m³
PM10
34.52ppb
O3
0.76ppb
SO2
10.40ppb
NO2
0.48ppm
CO
AQI 31
Good
3.93μg/m³
PM2.5
16.77μg/m³
PM10
33.58ppb
O3
0.73ppb
SO2
11.42ppb
NO2
0.47ppm
CO
AQI 31
Good
4.48μg/m³
PM2.5
12.14μg/m³
PM10
33.71ppb
O3
0.78ppb
SO2
21.63ppb
NO2
0.49ppm
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 Randolph, New Jersey is updated every hour.
The worst air quality in Randolph, New Jersey in the last 24 hours was observed at 10:00:00 on 2026-10-22.
In the last 24 hrs, the best air quality in Randolph, New Jersey was observed at 02:00:00 on 2026-10-22.
The current air quality in Randolph, New Jersey is 31, categorized as Good based on real-time data.
The most common pollutant in Randolph, New Jersey is O3.
If the air quality in Randolph, New Jersey is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Randolph, New Jersey is 3.027 μg/m3.
The current PM10 concentration at Randolph, New Jersey is 12.725 μg/m3.
The current carbon monoxide (CO) concentration at Randolph, New Jersey is 0.513 ppm.
The current sulfur dioxide (SO2) concentration at Randolph, New Jersey is 0.841 ppb.
The current ozone (O3) concentration at Randolph, New Jersey is 32.87 ppm.
The current nitrogen dioxide (NO2) concentration at Randolph, New Jersey is 16.305 ppb.
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