Stay updated with real-time air quality in Meriden, 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)
33
Good
Meriden, Connecticut
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
6.39 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
15.01 μg/m³
0
55
155
255
425
605+
30.12 ppb
0
55
71
86
201
201+
0.22 ppb
0
36
76
186
605
1005+
7.05 ppb
0
54
101
361
1250
2050+
0.27 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Meriden, Connecticut
Meriden, Connecticut
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AQI 38
Good
6.71μg/m³
PM2.5
16.32μg/m³
PM10
30.89ppb
O3
0.30ppb
SO2
5.94ppb
NO2
0.32ppm
CO
AQI 38
Good
6.66μg/m³
PM2.5
19.48μg/m³
PM10
34.02ppb
O3
0.30ppb
SO2
8.07ppb
NO2
0.27ppm
CO
AQI 33
Good
6.23μg/m³
PM2.5
18.43μg/m³
PM10
32.60ppb
O3
0.30ppb
SO2
7.79ppb
NO2
0.25ppm
CO
AQI 38
Good
6.51μg/m³
PM2.5
18.07μg/m³
PM10
30.72ppb
O3
0.30ppb
SO2
5.81ppb
NO2
0.39ppm
CO
AQI 33
Good
5.34μg/m³
PM2.5
19.95μg/m³
PM10
35.72ppb
O3
0.29ppb
SO2
6.69ppb
NO2
0.35ppm
CO
AQI 38
Good
6.51μg/m³
PM2.5
18.07μg/m³
PM10
30.72ppb
O3
0.30ppb
SO2
5.81ppb
NO2
0.39ppm
CO
Air quality and pollutant data for Connecticut, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Meriden, Connecticut is updated every hour for accuracy.
In the past 24 hours, the air quality in Meriden, Connecticut was at its worst at 10:00:00 on 2025-09-13.
In the last 24 hours, the best air quality in Meriden, Connecticut was observed at 04:00:00 on 2025-09-14.
As of now, the AQI in Meriden, Connecticut is 33, indicating Good conditions.
Meriden, Connecticut air has the highest levels of PM2.5.
Poor air quality in Meriden, Connecticut means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Meriden, Connecticut are currently 6.387 μg/m3.
The PM10 concentration in Meriden, Connecticut is 15.011 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Meriden, Connecticut is 0.266 ppm.
Currently, Meriden, Connecticut has a sulfur dioxide (SO2) concentration of 0.218 ppb.
The current ozone (O3) level in Meriden, Connecticut at the moment is 30.116 ppm.
Nitrogen dioxide (NO2) level in Meriden, Connecticut at the moment is 7.047 ppb.
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