Stay updated with real-time air quality in Berlin, 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)
21
Good
Berlin, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.23 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
3.00 μg/m³
0
55
155
255
425
605+
22.53 ppb
0
55
71
86
201
201+
0.67 ppb
0
36
76
186
605
1005+
3.97 ppb
0
54
101
361
1250
2050+
0.27 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Berlin, Connecticut
Berlin, Connecticut
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AQI 21
Good
1.23μg/m³
PM2.5
3.00μg/m³
PM10
22.53ppb
O3
0.67ppb
SO2
3.97ppb
NO2
0.27ppm
CO
AQI 20
Good
1.21μg/m³
PM2.5
5.07μg/m³
PM10
22.18ppb
O3
0.66ppb
SO2
4.20ppb
NO2
0.28ppm
CO
AQI 20
Good
1.03μg/m³
PM2.5
2.42μg/m³
PM10
21.80ppb
O3
0.67ppb
SO2
4.35ppb
NO2
0.29ppm
CO
AQI 19
Good
1.17μg/m³
PM2.5
2.92μg/m³
PM10
21.18ppb
O3
0.66ppb
SO2
4.07ppb
NO2
0.28ppm
CO
AQI 19
Good
1.21μg/m³
PM2.5
2.99μg/m³
PM10
21.05ppb
O3
0.66ppb
SO2
4.01ppb
NO2
0.27ppm
CO
AQI 20
Good
0.86μg/m³
PM2.5
2.71μg/m³
PM10
22.23ppb
O3
0.73ppb
SO2
4.03ppb
NO2
0.26ppm
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 Berlin, Connecticut are available every hour.
Berlin, Connecticut experienced its worst air quality at 03:00:00, 2026-09-28.
The best air quality in Berlin, Connecticut was observed at 10:00:00 on 2026-09-28.
The air quality in Berlin, Connecticut right now is Good, with an AQI of 21.
In Berlin, Connecticut, O3 is the most frequently found pollutant.
When air quality in Berlin, Connecticut is compromised, staying indoors and wearing a mask can reduce health risks.
Berlin, Connecticut currently has a PM2.5 concentration of 1.234 μg/m3.
Berlin, Connecticut currently has a PM10 concentration of 3.003 μg/m3.
The current carbon monoxide (CO) level in Berlin, Connecticut is 0.272 ppm.
The current sulfur dioxide (SO2) concentration in Berlin, Connecticut is 0.666 ppb.
Berlin, Connecticut currently has an ozone (O3) concentration of 22.533 ppm.
The current level of nitrogen dioxide (NO2) in Berlin, Connecticut is 3.967 ppb.
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