Current air quality index in Bethel, Connecticut today
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)
Common air pollutants in Bethel, Connecticut
Good
Fine
Moderate
Poor
Very poor
Hazardous
Particulate Matter2.5 (PM2.5)
7.02 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
13.35 μg/m³
0
55
155
255
425
605+
Ozone (O3)
36.63 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
0.47 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
11.37 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Bethel, Connecticut
Bethel, Connecticut
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Air quality in nearby cities
Danbury, Connecticut
AQI 33
Good
6.10μg/m³
PM2.5
12.02μg/m³
PM10
32.99ppb
O3
0.48ppb
SO2
11.70ppb
NO2
0.20ppm
CO
Newtown, Connecticut
AQI 28
Good
4.48μg/m³
PM2.5
12.63μg/m³
PM10
29.77ppb
O3
0.43ppb
SO2
8.33ppb
NO2
0.20ppm
CO
Brookfield, Connecticut
AQI 33
Good
6.03μg/m³
PM2.5
12.51μg/m³
PM10
32.83ppb
O3
0.49ppb
SO2
11.59ppb
NO2
0.20ppm
CO
Ridgefield, Connecticut
AQI 30
Good
3.92μg/m³
PM2.5
8.17μg/m³
PM10
31.64ppb
O3
0.61ppb
SO2
11.85ppb
NO2
0.21ppm
CO
New Fairfield, Connecticut
AQI 33
Good
5.62μg/m³
PM2.5
12.15μg/m³
PM10
31.60ppb
O3
0.50ppb
SO2
11.68ppb
NO2
0.20ppm
CO
Lewisboro, New York
AQI 31
Good
3.77μg/m³
PM2.5
11.91μg/m³
PM10
32.64ppb
O3
0.64ppb
SO2
16.07ppb
NO2
0.23ppm
CO
How accurate is Connecticut, USA air quality data?
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
Frequently asked questions
How frequently does the air quality data for Bethel, Connecticut get updated?
Air quality updates for Bethel, Connecticut are available every hour.
What time in the past 24 hours saw the poorest air quality in Bethel, Connecticut?
Bethel, Connecticut experienced its worst air quality at 10:00:00, 2026-05-13.
When was air quality in Bethel, Connecticut the best over the past 24 hours?
The best air quality in Bethel, Connecticut was observed at 01:00:00 on 2026-05-13.
What is the air quality in Bethel, Connecticut right now?
The air quality in Bethel, Connecticut right now is Good, with an AQI of 38.
What pollutant is most frequently found in Bethel, Connecticut?
In Bethel, Connecticut, PM2.5 is the most frequently found pollutant.
What can I do if the air quality in Bethel, Connecticut is poor?
When air quality in Bethel, Connecticut is compromised, staying indoors and wearing a mask can reduce health risks.
What is the PM2.5 concentration in Bethel, Connecticut right now?
Bethel, Connecticut currently has a PM2.5 concentration of 7.023 μg/m3.
What is the current level of PM10 in Bethel, Connecticut?
Bethel, Connecticut currently has a PM10 concentration of 13.348 μg/m3.
What is the current level of carbon monoxide (CO) in Bethel, Connecticut?
The current carbon monoxide (CO) level in Bethel, Connecticut is 0.216 ppm.
What is the current level of sulfur dioxide (SO2) in Bethel, Connecticut?
The current sulfur dioxide (SO2) concentration in Bethel, Connecticut is 0.47 ppb.
What is the current level of ozone (O3) in Bethel, Connecticut?
Bethel, Connecticut currently has an ozone (O3) concentration of 36.625 ppm.
What is the current level of nitrogen dioxide (NO2) in Bethel, Connecticut?
The current level of nitrogen dioxide (NO2) in Bethel, Connecticut is 11.367 ppb.
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