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)
49
Good
Charlton, Massachusetts
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
9.46 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
42.80 μg/m³
0
55
155
255
425
605+
28.45 ppb
0
55
71
86
201
201+
0.14 ppb
0
36
76
186
605
1005+
8.71 ppb
0
54
101
361
1250
2050+
0.29 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Charlton, Massachusetts
Charlton, Massachusetts
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AQI 22
Good
4.10μg/m³
PM2.5
20.06μg/m³
PM10
20.87ppb
O3
0.22ppb
SO2
8.19ppb
NO2
0.30ppm
CO
AQI 22
Good
3.91μg/m³
PM2.5
19.17μg/m³
PM10
15.44ppb
O3
0.23ppb
SO2
9.60ppb
NO2
0.31ppm
CO
AQI 22
Good
4.23μg/m³
PM2.5
8.55μg/m³
PM10
16.87ppb
O3
0.22ppb
SO2
8.13ppb
NO2
0.31ppm
CO
AQI 22
Good
3.96μg/m³
PM2.5
19.90μg/m³
PM10
15.70ppb
O3
0.22ppb
SO2
9.46ppb
NO2
0.30ppm
CO
AQI 24
Good
3.89μg/m³
PM2.5
9.41μg/m³
PM10
25.83ppb
O3
0.23ppb
SO2
8.39ppb
NO2
0.26ppm
CO
AQI 22
Good
4.25μg/m³
PM2.5
8.84μg/m³
PM10
22.55ppb
O3
0.21ppb
SO2
10.47ppb
NO2
0.23ppm
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 09:00:00 on 2025-09-10.
In the last 24 hrs, the best air quality in Charlton, Massachusetts was observed at 12:00:00 on 2025-09-10.
The current air quality in Charlton, Massachusetts is 22, categorized as Good based on real-time data.
The most common pollutant in Charlton, Massachusetts is PM2.5.
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 3.907 μg/m3.
The current PM10 concentration at Charlton, Massachusetts is 19.257 μg/m3.
The current carbon monoxide (CO) concentration at Charlton, Massachusetts is 0.293 ppm.
The current sulfur dioxide (SO2) concentration at Charlton, Massachusetts is 0.227 ppb.
The current ozone (O3) concentration at Charlton, Massachusetts is 22.975 ppm.
The current nitrogen dioxide (NO2) concentration at Charlton, Massachusetts is 8.498 ppb.
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