Stay updated with real-time air quality in Manchester, Connecticut 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)
30
Good
Manchester, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.89 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
14.27 μg/m³
0
55
155
255
425
605+
32.17 ppb
0
55
71
86
201
201+
0.18 ppb
0
36
76
186
605
1005+
6.14 ppb
0
54
101
361
1250
2050+
0.27 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Manchester, Connecticut
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AQI 27
Good
4.52μg/m³
PM2.5
13.93μg/m³
PM10
24.80ppb
O3
0.20ppb
SO2
5.53ppb
NO2
0.20ppm
CO
AQI 27
Good
4.57μg/m³
PM2.5
12.74μg/m³
PM10
21.34ppb
O3
0.20ppb
SO2
5.67ppb
NO2
0.20ppm
CO
AQI 27
Good
4.61μg/m³
PM2.5
13.88μg/m³
PM10
21.93ppb
O3
0.20ppb
SO2
5.59ppb
NO2
0.20ppm
CO
AQI 22
Good
4.48μg/m³
PM2.5
13.43μg/m³
PM10
22.86ppb
O3
0.21ppb
SO2
5.62ppb
NO2
0.20ppm
CO
AQI 27
Good
4.50μg/m³
PM2.5
11.11μg/m³
PM10
24.72ppb
O3
0.20ppb
SO2
4.95ppb
NO2
0.20ppm
CO
AQI 27
Good
4.59μg/m³
PM2.5
12.90μg/m³
PM10
22.01ppb
O3
0.20ppb
SO2
5.54ppb
NO2
0.20ppm
CO
Air quality data and pollutant measurements for Connecticut, 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 Manchester, Connecticut is updated every hour.
The worst air quality in Manchester, Connecticut in the last 24 hours was observed at 08:00:00 on 2026-08-09.
In the last 24 hrs, the best air quality in Manchester, Connecticut was observed at 04:00:00 on 2026-08-10.
The current air quality in Manchester, Connecticut is 27, categorized as Good based on real-time data.
The most common pollutant in Manchester, Connecticut is PM2.5.
If the air quality in Manchester, Connecticut is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Manchester, Connecticut is 4.536 μg/m3.
The current PM10 concentration at Manchester, Connecticut is 13.594 μg/m3.
The current carbon monoxide (CO) concentration at Manchester, Connecticut is 0.197 ppm.
The current sulfur dioxide (SO2) concentration at Manchester, Connecticut is 0.199 ppb.
The current ozone (O3) concentration at Manchester, Connecticut is 24.025 ppm.
The current nitrogen dioxide (NO2) concentration at Manchester, Connecticut is 5.544 ppb.
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