Stay updated with real-time air quality in New Canaan, 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)
29
Good
New Canaan, Connecticut
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
2.30 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
6.54 μg/m³
0
55
155
255
425
605+
30.73 ppb
0
55
71
86
201
201+
0.50 ppb
0
36
76
186
605
1005+
2.56 ppb
0
54
101
361
1250
2050+
0.26 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
New Canaan, Connecticut
New Canaan, Connecticut
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AQI 44
Good
7.76μg/m³
PM2.5
17.91μg/m³
PM10
33.82ppb
O3
0.65ppb
SO2
11.31ppb
NO2
0.27ppm
CO
AQI 49
Good
8.65μg/m³
PM2.5
20.45μg/m³
PM10
32.68ppb
O3
0.76ppb
SO2
11.32ppb
NO2
0.28ppm
CO
AQI 44
Good
7.81μg/m³
PM2.5
15.90μg/m³
PM10
31.52ppb
O3
0.67ppb
SO2
8.04ppb
NO2
0.26ppm
CO
AQI 44
Good
8.11μg/m³
PM2.5
21.02μg/m³
PM10
31.18ppb
O3
0.67ppb
SO2
14.01ppb
NO2
0.27ppm
CO
AQI 44
Good
7.58μg/m³
PM2.5
21.51μg/m³
PM10
32.41ppb
O3
0.94ppb
SO2
12.60ppb
NO2
0.28ppm
CO
AQI 44
Good
8.04μg/m³
PM2.5
16.16μg/m³
PM10
33.12ppb
O3
0.63ppb
SO2
8.21ppb
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 New Canaan, Connecticut are available every hour.
New Canaan, Connecticut experienced its worst air quality at 08:00:00, 2025-07-09.
The best air quality in New Canaan, Connecticut was observed at 07:00:00 on 2025-07-09.
The air quality in New Canaan, Connecticut right now is Good, with an AQI of 44.
In New Canaan, Connecticut, PM2.5 is the most frequently found pollutant.
When air quality in New Canaan, Connecticut is compromised, staying indoors and wearing a mask can reduce health risks.
New Canaan, Connecticut currently has a PM2.5 concentration of 8.331 μg/m3.
New Canaan, Connecticut currently has a PM10 concentration of 18.424 μg/m3.
The current carbon monoxide (CO) level in New Canaan, Connecticut is 0.235 ppm.
The current sulfur dioxide (SO2) concentration in New Canaan, Connecticut is 0.93 ppb.
New Canaan, Connecticut currently has an ozone (O3) concentration of 25.439 ppm.
The current level of nitrogen dioxide (NO2) in New Canaan, Connecticut is 14.895 ppb.
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