Stay updated with real-time air quality in Rocky Hill, 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)
44
Good
Rocky Hill, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.56 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
18.06 μg/m³
0
55
155
255
425
605+
48.27 ppb
0
55
71
86
201
201+
0.30 ppb
0
36
76
186
605
1005+
6.52 ppb
0
54
101
361
1250
2050+
0.19 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Rocky Hill, Connecticut
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AQI 44
Good
5.52μg/m³
PM2.5
15.43μg/m³
PM10
48.02ppb
O3
0.29ppb
SO2
6.59ppb
NO2
0.20ppm
CO
AQI 44
Good
5.58μg/m³
PM2.5
15.82μg/m³
PM10
47.82ppb
O3
0.30ppb
SO2
7.08ppb
NO2
0.19ppm
CO
AQI 45
Good
5.16μg/m³
PM2.5
18.87μg/m³
PM10
48.75ppb
O3
0.30ppb
SO2
5.39ppb
NO2
0.18ppm
CO
AQI 44
Good
5.53μg/m³
PM2.5
13.91μg/m³
PM10
47.52ppb
O3
0.30ppb
SO2
5.02ppb
NO2
0.18ppm
CO
AQI 44
Good
5.53μg/m³
PM2.5
13.91μg/m³
PM10
47.52ppb
O3
0.30ppb
SO2
5.02ppb
NO2
0.18ppm
CO
AQI 44
Good
5.30μg/m³
PM2.5
16.02μg/m³
PM10
48.38ppb
O3
0.29ppb
SO2
5.62ppb
NO2
0.19ppm
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 Rocky Hill, Connecticut is updated every hour for accuracy.
In the past 24 hours, the air quality in Rocky Hill, Connecticut was at its worst at 10:00:00 on 2026-03-29.
In the last 24 hours, the best air quality in Rocky Hill, Connecticut was observed at 03:00:00 on 2026-03-29.
As of now, the AQI in Rocky Hill, Connecticut is 44, indicating Good conditions.
Rocky Hill, Connecticut air has the highest levels of O3.
Poor air quality in Rocky Hill, Connecticut means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Rocky Hill, Connecticut are currently 5.558 μg/m3.
The PM10 concentration in Rocky Hill, Connecticut is 18.06 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Rocky Hill, Connecticut is 0.187 ppm.
Currently, Rocky Hill, Connecticut has a sulfur dioxide (SO2) concentration of 0.299 ppb.
The current ozone (O3) level in Rocky Hill, Connecticut at the moment is 48.266 ppm.
Nitrogen dioxide (NO2) level in Rocky Hill, Connecticut at the moment is 6.523 ppb.
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