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)
21
Good
Neptune, New Jersey
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.20 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
4.59 μg/m³
0
55
155
255
425
605+
22.52 ppb
0
55
71
86
201
201+
0.30 ppb
0
36
76
186
605
1005+
5.11 ppb
0
54
101
361
1250
2050+
0.26 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 21
Good
1.20μg/m³
PM2.5
4.59μg/m³
PM10
22.52ppb
O3
0.30ppb
SO2
5.11ppb
NO2
0.26ppm
CO
AQI 21
Good
0.84μg/m³
PM2.5
4.79μg/m³
PM10
22.55ppb
O3
0.30ppb
SO2
5.66ppb
NO2
0.25ppm
CO
AQI 22
Good
1.26μg/m³
PM2.5
3.44μg/m³
PM10
23.50ppb
O3
0.31ppb
SO2
4.24ppb
NO2
0.26ppm
CO
AQI 21
Good
0.84μg/m³
PM2.5
4.78μg/m³
PM10
23.10ppb
O3
0.30ppb
SO2
6.03ppb
NO2
0.25ppm
CO
AQI 21
Good
0.81μg/m³
PM2.5
4.80μg/m³
PM10
22.61ppb
O3
0.30ppb
SO2
5.74ppb
NO2
0.25ppm
CO
AQI 21
Good
0.85μg/m³
PM2.5
4.76μg/m³
PM10
22.85ppb
O3
0.30ppb
SO2
6.07ppb
NO2
0.25ppm
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 03:00:00 on 2026-09-28.
The best air quality in Neptune, New Jersey was recorded at 05:00:00 on 2026-09-28.
The real-time air quality index in Neptune, New Jersey is 21, currently categorized as Good.
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 1.198 μg/m3.
The current PM10 levels in Neptune, New Jersey are 4.589 μg/m3.
The current carbon monoxide (CO) level in Neptune, New Jersey is 0.258 ppm.
The current sulfur dioxide (SO2) levels in Neptune, New Jersey are 0.301 ppb.
The current ozone (O3) levels at Neptune, New Jersey is 22.518 ppm.
The current nitrogen dioxide (NO2) levels at Neptune, New Jersey is 5.109 ppb.
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