Stay updated with real-time air quality in Rosemead, 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)
38
Good
Rosemead, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
7.07 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
26.23 μg/m³
0
55
155
255
425
605+
25.52 ppb
0
55
71
86
201
201+
0.24 ppb
0
36
76
186
605
1005+
5.60 ppb
0
54
101
361
1250
2050+
0.21 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Rosemead, California
Rosemead, California
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AQI 33
Good
6.33μg/m³
PM2.5
21.25μg/m³
PM10
32.06ppb
O3
0.36ppb
SO2
5.56ppb
NO2
0.17ppm
CO
AQI 38
Good
6.59μg/m³
PM2.5
24.49μg/m³
PM10
32.62ppb
O3
0.35ppb
SO2
4.91ppb
NO2
0.18ppm
CO
AQI 27
Good
4.92μg/m³
PM2.5
14.60μg/m³
PM10
28.53ppb
O3
0.36ppb
SO2
6.65ppb
NO2
0.12ppm
CO
AQI 33
Good
5.75μg/m³
PM2.5
17.64μg/m³
PM10
30.61ppb
O3
0.36ppb
SO2
6.19ppb
NO2
0.14ppm
CO
AQI 38
Good
6.97μg/m³
PM2.5
25.50μg/m³
PM10
33.20ppb
O3
0.36ppb
SO2
4.99ppb
NO2
0.19ppm
CO
AQI 29
Good
5.37μg/m³
PM2.5
18.80μg/m³
PM10
30.93ppb
O3
0.35ppb
SO2
5.20ppb
NO2
0.17ppm
CO
Air quality and pollutant data for California, 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 Rosemead, California is updated every hour for accuracy.
In the past 24 hours, the air quality in Rosemead, California was at its worst at 07:00:00 on 2025-07-22.
In the last 24 hours, the best air quality in Rosemead, California was observed at 01:00:00 on 2025-07-22.
As of now, the AQI in Rosemead, California is 27, indicating Good conditions.
Rosemead, California air has the highest levels of O3.
Poor air quality in Rosemead, California means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Rosemead, California are currently 4.78 μg/m3.
The PM10 concentration in Rosemead, California is 15.721 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Rosemead, California is 0.153 ppm.
Currently, Rosemead, California has a sulfur dioxide (SO2) concentration of 0.357 ppb.
The current ozone (O3) level in Rosemead, California at the moment is 28.544 ppm.
Nitrogen dioxide (NO2) level in Rosemead, California at the moment is 6.172 ppb.
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