Stay updated with real-time air quality in West Hartford, 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)
20
Good
West Hartford, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
0.96 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
2.36 μg/m³
0
55
155
255
425
605+
22.28 ppb
0
55
71
86
201
201+
0.50 ppb
0
36
76
186
605
1005+
4.19 ppb
0
54
101
361
1250
2050+
0.29 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
West Hartford, Connecticut
West Hartford, Connecticut
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AQI 21
Good
0.78μg/m³
PM2.5
3.62μg/m³
PM10
22.56ppb
O3
0.52ppb
SO2
3.85ppb
NO2
0.26ppm
CO
AQI 20
Good
0.90μg/m³
PM2.5
2.01μg/m³
PM10
22.44ppb
O3
0.51ppb
SO2
4.54ppb
NO2
0.30ppm
CO
AQI 20
Good
0.97μg/m³
PM2.5
2.48μg/m³
PM10
22.25ppb
O3
0.50ppb
SO2
4.12ppb
NO2
0.29ppm
CO
AQI 20
Good
0.91μg/m³
PM2.5
2.08μg/m³
PM10
22.22ppb
O3
0.51ppb
SO2
4.04ppb
NO2
0.29ppm
CO
AQI 21
Good
1.12μg/m³
PM2.5
2.22μg/m³
PM10
23.41ppb
O3
0.51ppb
SO2
3.89ppb
NO2
0.27ppm
CO
AQI 20
Good
0.90μg/m³
PM2.5
2.05μg/m³
PM10
22.24ppb
O3
0.51ppb
SO2
3.95ppb
NO2
0.29ppm
CO
Air quality and pollutant data for Connecticut, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for West Hartford, Connecticut is updated every hour for accuracy.
In the past 24 hours, the air quality in West Hartford, Connecticut was at its worst at 03:00:00 on 2026-09-28.
In the last 24 hours, the best air quality in West Hartford, Connecticut was observed at 09:00:00 on 2026-09-28.
As of now, the AQI in West Hartford, Connecticut is 20, indicating Good conditions.
West Hartford, Connecticut air has the highest levels of O3.
Poor air quality in West Hartford, Connecticut means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in West Hartford, Connecticut are currently 0.957 μg/m3.
The PM10 concentration in West Hartford, Connecticut is 2.363 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in West Hartford, Connecticut is 0.292 ppm.
Currently, West Hartford, Connecticut has a sulfur dioxide (SO2) concentration of 0.503 ppb.
The current ozone (O3) level in West Hartford, Connecticut at the moment is 22.277 ppm.
Nitrogen dioxide (NO2) level in West Hartford, Connecticut at the moment is 4.191 ppb.
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