Stay updated with real-time air quality in Rosemont, California 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
Rosemont, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
6.20 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
26.52 μg/m³
0
55
155
255
425
605+
12.83 ppb
0
55
71
86
201
201+
0.53 ppb
0
36
76
186
605
1005+
11.13 ppb
0
54
101
361
1250
2050+
0.28 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Rosemont, California
Rosemont, California
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AQI 33
Good
6.20μg/m³
PM2.5
26.52μg/m³
PM10
12.83ppb
O3
0.53ppb
SO2
11.13ppb
NO2
0.28ppm
CO
AQI 33
Good
6.11μg/m³
PM2.5
26.98μg/m³
PM10
9.26ppb
O3
0.53ppb
SO2
10.25ppb
NO2
0.28ppm
CO
AQI 33
Good
6.43μg/m³
PM2.5
25.44μg/m³
PM10
16.31ppb
O3
0.53ppb
SO2
11.32ppb
NO2
0.28ppm
CO
AQI 33
Good
6.29μg/m³
PM2.5
25.35μg/m³
PM10
13.82ppb
O3
0.53ppb
SO2
9.52ppb
NO2
0.27ppm
CO
AQI 33
Good
6.29μg/m³
PM2.5
26.23μg/m³
PM10
11.04ppb
O3
0.53ppb
SO2
9.89ppb
NO2
0.28ppm
CO
AQI 33
Good
6.42μg/m³
PM2.5
26.54μg/m³
PM10
16.85ppb
O3
0.53ppb
SO2
12.47ppb
NO2
0.28ppm
CO
The air quality data for California, 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 Rosemont, California are available every hour.
Rosemont, California experienced its worst air quality at 07:00:00, 2025-10-23.
The best air quality in Rosemont, California was observed at 03:00:00 on 2025-10-22.
The air quality in Rosemont, California right now is Good, with an AQI of 33.
In Rosemont, California, PM2.5 is the most frequently found pollutant.
When air quality in Rosemont, California is compromised, staying indoors and wearing a mask can reduce health risks.
Rosemont, California currently has a PM2.5 concentration of 6.195 μg/m3.
Rosemont, California currently has a PM10 concentration of 26.524 μg/m3.
The current carbon monoxide (CO) level in Rosemont, California is 0.28 ppm.
The current sulfur dioxide (SO2) concentration in Rosemont, California is 0.53 ppb.
Rosemont, California currently has an ozone (O3) concentration of 12.826 ppm.
The current level of nitrogen dioxide (NO2) in Rosemont, California is 11.127 ppb.
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