Stay updated with real-time air quality in Charlton, Massachusetts 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)
34
Good
Charlton, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.09 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
6.30 μg/m³
0
55
155
255
425
605+
37.30 ppb
0
55
71
86
201
201+
0.20 ppb
0
36
76
186
605
1005+
1.62 ppb
0
54
101
361
1250
2050+
0.15 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Charlton, Massachusetts
Scroll To Air Quality MapLoading...
AQI 34
Good
2.06μg/m³
PM2.5
6.07μg/m³
PM10
37.49ppb
O3
0.22ppb
SO2
1.73ppb
NO2
0.15ppm
CO
AQI 34
Good
2.08μg/m³
PM2.5
6.03μg/m³
PM10
36.89ppb
O3
0.26ppb
SO2
1.56ppb
NO2
0.16ppm
CO
AQI 33
Good
2.09μg/m³
PM2.5
5.92μg/m³
PM10
36.36ppb
O3
0.22ppb
SO2
1.73ppb
NO2
0.15ppm
CO
AQI 32
Good
2.08μg/m³
PM2.5
6.10μg/m³
PM10
34.98ppb
O3
0.22ppb
SO2
1.65ppb
NO2
0.15ppm
CO
AQI 34
Good
2.06μg/m³
PM2.5
8.50μg/m³
PM10
37.46ppb
O3
0.20ppb
SO2
1.64ppb
NO2
0.15ppm
CO
AQI 34
Good
2.12μg/m³
PM2.5
8.80μg/m³
PM10
36.87ppb
O3
0.21ppb
SO2
1.44ppb
NO2
0.12ppm
CO
Air quality data and pollutant measurements for Massachusetts, 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 Charlton, Massachusetts is updated every hour.
The worst air quality in Charlton, Massachusetts in the last 24 hours was observed at 06:00:00 on 2026-03-12.
In the last 24 hrs, the best air quality in Charlton, Massachusetts was observed at 05:00:00 on 2026-03-12.
The current air quality in Charlton, Massachusetts is 34, categorized as Good based on real-time data.
The most common pollutant in Charlton, Massachusetts is O3.
If the air quality in Charlton, Massachusetts is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Charlton, Massachusetts is 2.087 μg/m3.
The current PM10 concentration at Charlton, Massachusetts is 6.298 μg/m3.
The current carbon monoxide (CO) concentration at Charlton, Massachusetts is 0.147 ppm.
The current sulfur dioxide (SO2) concentration at Charlton, Massachusetts is 0.198 ppb.
The current ozone (O3) concentration at Charlton, Massachusetts is 37.295 ppm.
The current nitrogen dioxide (NO2) concentration at Charlton, Massachusetts is 1.617 ppb.
All Rights Reserved © Ambee Inc. 2025