Stay updated with real-time air quality in Neptune, 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)
51
Moderate
Neptune, New Jersey
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.80 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
27.46 μg/m³
0
55
155
255
425
605+
54.51 ppb
0
55
71
86
201
201+
1.07 ppb
0
36
76
186
605
1005+
16.35 ppb
0
54
101
361
1250
2050+
0.34 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Neptune, New Jersey
Neptune, New Jersey
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AQI 51
Moderate
7.98μg/m³
PM2.5
27.62μg/m³
PM10
54.60ppb
O3
1.09ppb
SO2
17.11ppb
NO2
0.34ppm
CO
AQI 51
Moderate
8.06μg/m³
PM2.5
27.66μg/m³
PM10
54.50ppb
O3
1.09ppb
SO2
17.43ppb
NO2
0.34ppm
CO
AQI 74
Moderate
9.41μg/m³
PM2.5
43.11μg/m³
PM10
62.41ppb
O3
0.98ppb
SO2
20.67ppb
NO2
0.33ppm
CO
AQI 51
Moderate
8.16μg/m³
PM2.5
28.14μg/m³
PM10
54.67ppb
O3
1.09ppb
SO2
17.54ppb
NO2
0.34ppm
CO
AQI 54
Moderate
8.22μg/m³
PM2.5
30.14μg/m³
PM10
56.05ppb
O3
1.11ppb
SO2
16.87ppb
NO2
0.35ppm
CO
AQI 50
Good
8.08μg/m³
PM2.5
27.19μg/m³
PM10
54.17ppb
O3
1.08ppb
SO2
17.80ppb
NO2
0.34ppm
CO
Air quality measurements for New Jersey, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Neptune, New Jersey is updated on an hourly basis.
The worst air quality in Neptune, New Jersey was recorded at 04:00:00 on 2026-06-29.
The best air quality in Neptune, New Jersey was recorded at 08:00:00 on 2026-06-29.
The real-time air quality index in Neptune, New Jersey is 51, currently categorized as Moderate.
The most common pollutant in Neptune, New Jersey is O3.
If the air quality in Neptune, New Jersey is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Neptune, New Jersey at present are 7.799 μg/m3.
The current PM10 levels in Neptune, New Jersey are 27.46 μg/m3.
The current carbon monoxide (CO) level in Neptune, New Jersey is 0.338 ppm.
The current sulfur dioxide (SO2) levels in Neptune, New Jersey are 1.074 ppb.
The current ozone (O3) levels at Neptune, New Jersey is 54.505 ppm.
The current nitrogen dioxide (NO2) levels at Neptune, New Jersey is 16.349 ppb.
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