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)
49
Good
Neptune, New Jersey
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.16 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
47.37 μg/m³
0
55
155
255
425
605+
28.95 ppb
0
55
71
86
201
201+
0.68 ppb
0
36
76
186
605
1005+
13.84 ppb
0
54
101
361
1250
2050+
0.30 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 49
Good
9.21μg/m³
PM2.5
47.90μg/m³
PM10
28.48ppb
O3
0.68ppb
SO2
14.19ppb
NO2
0.30ppm
CO
AQI 49
Good
9.31μg/m³
PM2.5
48.66μg/m³
PM10
28.27ppb
O3
0.68ppb
SO2
14.32ppb
NO2
0.30ppm
CO
AQI 52
Moderate
9.81μg/m³
PM2.5
45.07μg/m³
PM10
29.29ppb
O3
0.67ppb
SO2
10.49ppb
NO2
0.30ppm
CO
AQI 49
Good
9.33μg/m³
PM2.5
48.74μg/m³
PM10
28.20ppb
O3
0.68ppb
SO2
14.29ppb
NO2
0.30ppm
CO
AQI 49
Good
8.92μg/m³
PM2.5
45.36μg/m³
PM10
28.66ppb
O3
0.72ppb
SO2
13.65ppb
NO2
0.31ppm
CO
AQI 49
Good
9.44μg/m³
PM2.5
49.70μg/m³
PM10
28.05ppb
O3
0.68ppb
SO2
14.55ppb
NO2
0.30ppm
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 10:00:00 on 2026-08-13.
The best air quality in Neptune, New Jersey was recorded at 05:00:00 on 2026-08-14.
The real-time air quality index in Neptune, New Jersey is 49, currently categorized as Good.
The most common pollutant in Neptune, New Jersey is PM2.5.
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 9.156 μg/m3.
The current PM10 levels in Neptune, New Jersey are 47.373 μg/m3.
The current carbon monoxide (CO) level in Neptune, New Jersey is 0.3 ppm.
The current sulfur dioxide (SO2) levels in Neptune, New Jersey are 0.679 ppb.
The current ozone (O3) levels at Neptune, New Jersey is 28.953 ppm.
The current nitrogen dioxide (NO2) levels at Neptune, New Jersey is 13.839 ppb.
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