Stay updated with real-time air quality in Bristol, 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)
54
Moderate
Bristol, Connecticut
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
11.24 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
25.14 μg/m³
0
55
155
255
425
605+
12.63 ppb
0
55
71
86
201
201+
0.19 ppb
0
36
76
186
605
1005+
12.68 ppb
0
54
101
361
1250
2050+
0.28 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Bristol, Connecticut
Bristol, Connecticut
Scroll To Air Quality MapLoading...
AQI 58
Moderate
12.90μg/m³
PM2.5
68.44μg/m³
PM10
46.14ppb
O3
0.49ppb
SO2
12.00ppb
NO2
0.29ppm
CO
AQI 54
Moderate
11.43μg/m³
PM2.5
21.11μg/m³
PM10
44.46ppb
O3
0.57ppb
SO2
16.41ppb
NO2
0.29ppm
CO
AQI 56
Moderate
12.49μg/m³
PM2.5
29.95μg/m³
PM10
45.70ppb
O3
0.51ppb
SO2
3.70ppb
NO2
0.28ppm
CO
AQI 62
Moderate
13.58μg/m³
PM2.5
77.34μg/m³
PM10
46.97ppb
O3
0.52ppb
SO2
12.71ppb
NO2
0.29ppm
CO
AQI 60
Moderate
13.81μg/m³
PM2.5
69.35μg/m³
PM10
50.70ppb
O3
0.47ppb
SO2
10.80ppb
NO2
0.29ppm
CO
AQI 56
Moderate
12.41μg/m³
PM2.5
26.40μg/m³
PM10
45.33ppb
O3
0.45ppb
SO2
10.81ppb
NO2
0.29ppm
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 Bristol, Connecticut is updated every hour.
The worst air quality in Bristol, Connecticut in the last 24 hours was observed at 08:00:00 on 2025-07-29.
In the last 24 hrs, the best air quality in Bristol, Connecticut was observed at 09:00:00 on 2025-07-28.
The current air quality in Bristol, Connecticut is 58, categorized as Moderate based on real-time data.
The most common pollutant in Bristol, Connecticut is PM2.5.
If the air quality in Bristol, Connecticut is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Bristol, Connecticut is 12.664 μg/m3.
The current PM10 concentration at Bristol, Connecticut is 41.068 μg/m3.
The current carbon monoxide (CO) concentration at Bristol, Connecticut is 0.243 ppm.
The current sulfur dioxide (SO2) concentration at Bristol, Connecticut is 0.539 ppb.
The current ozone (O3) concentration at Bristol, Connecticut is 52.383 ppm.
The current nitrogen dioxide (NO2) concentration at Bristol, Connecticut is 10.704 ppb.
All Rights Reserved © Ambee Inc. 2025