Stay updated with real-time air quality in Bethel, 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)
38
Good
Bethel, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.79 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
13.10 μg/m³
0
55
155
255
425
605+
18.57 ppb
0
55
71
86
201
201+
0.31 ppb
0
36
76
186
605
1005+
14.09 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Bethel, Connecticut
Bethel, Connecticut
Scroll To Air Quality MapLoading...
AQI 38
Good
6.71μg/m³
PM2.5
12.07μg/m³
PM10
18.17ppb
O3
0.32ppb
SO2
14.52ppb
NO2
0.23ppm
CO
AQI 33
Good
6.35μg/m³
PM2.5
27.18μg/m³
PM10
22.89ppb
O3
0.26ppb
SO2
10.54ppb
NO2
0.23ppm
CO
AQI 38
Good
6.86μg/m³
PM2.5
13.97μg/m³
PM10
18.79ppb
O3
0.31ppb
SO2
13.82ppb
NO2
0.23ppm
CO
AQI 44
Good
7.58μg/m³
PM2.5
20.14μg/m³
PM10
18.31ppb
O3
0.34ppb
SO2
15.36ppb
NO2
0.24ppm
CO
AQI 38
Good
6.86μg/m³
PM2.5
15.36μg/m³
PM10
17.57ppb
O3
0.32ppb
SO2
13.97ppb
NO2
0.23ppm
CO
AQI 44
Good
7.53μg/m³
PM2.5
17.54μg/m³
PM10
17.29ppb
O3
0.37ppb
SO2
15.02ppb
NO2
0.25ppm
CO
The air quality data for Connecticut, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Bethel, Connecticut are available every hour.
Bethel, Connecticut experienced its worst air quality at 03:00:00, 2026-01-14.
The best air quality in Bethel, Connecticut was observed at 06:00:00 on 2026-01-14.
The air quality in Bethel, Connecticut right now is Good, with an AQI of 38.
In Bethel, Connecticut, PM2.5 is the most frequently found pollutant.
When air quality in Bethel, Connecticut is compromised, staying indoors and wearing a mask can reduce health risks.
Bethel, Connecticut currently has a PM2.5 concentration of 6.789 μg/m3.
Bethel, Connecticut currently has a PM10 concentration of 13.097 μg/m3.
The current carbon monoxide (CO) level in Bethel, Connecticut is 0.235 ppm.
The current sulfur dioxide (SO2) concentration in Bethel, Connecticut is 0.312 ppb.
Bethel, Connecticut currently has an ozone (O3) concentration of 18.571 ppm.
The current level of nitrogen dioxide (NO2) in Bethel, Connecticut is 14.093 ppb.
All Rights Reserved © Ambee Inc. 2025