Stay updated with real-time air quality in Middlesex, 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)
33
Good
Middlesex, New Jersey
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.95 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
27.14 μg/m³
0
55
155
255
425
605+
33.54 ppb
0
55
71
86
201
201+
1.32 ppb
0
36
76
186
605
1005+
9.33 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Middlesex, New Jersey
Middlesex, New Jersey
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AQI 33
Good
5.95μg/m³
PM2.5
27.14μg/m³
PM10
33.54ppb
O3
1.32ppb
SO2
9.33ppb
NO2
0.23ppm
CO
AQI 33
Good
6.47μg/m³
PM2.5
28.95μg/m³
PM10
31.79ppb
O3
1.39ppb
SO2
7.33ppb
NO2
0.24ppm
CO
AQI 33
Good
5.95μg/m³
PM2.5
28.09μg/m³
PM10
33.07ppb
O3
1.33ppb
SO2
9.49ppb
NO2
0.23ppm
CO
AQI 33
Good
6.01μg/m³
PM2.5
26.38μg/m³
PM10
31.82ppb
O3
1.41ppb
SO2
12.17ppb
NO2
0.24ppm
CO
AQI 33
Good
6.05μg/m³
PM2.5
28.43μg/m³
PM10
30.81ppb
O3
1.39ppb
SO2
13.22ppb
NO2
0.24ppm
CO
AQI 33
Good
6.01μg/m³
PM2.5
26.38μg/m³
PM10
31.82ppb
O3
1.41ppb
SO2
12.17ppb
NO2
0.24ppm
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 Middlesex, New Jersey are available every hour.
Middlesex, New Jersey experienced its worst air quality at 10:00:00, 2026-06-17.
The best air quality in Middlesex, New Jersey was observed at 10:00:00 on 2026-06-17.
The air quality in Middlesex, New Jersey right now is Good, with an AQI of 33.
In Middlesex, New Jersey, PM2.5 is the most frequently found pollutant.
When air quality in Middlesex, New Jersey is compromised, staying indoors and wearing a mask can reduce health risks.
Middlesex, New Jersey currently has a PM2.5 concentration of 5.954 μg/m3.
Middlesex, New Jersey currently has a PM10 concentration of 27.14 μg/m3.
The current carbon monoxide (CO) level in Middlesex, New Jersey is 0.227 ppm.
The current sulfur dioxide (SO2) concentration in Middlesex, New Jersey is 1.316 ppb.
Middlesex, New Jersey currently has an ozone (O3) concentration of 33.538 ppm.
The current level of nitrogen dioxide (NO2) in Middlesex, New Jersey is 9.329 ppb.
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