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)
52
Moderate
Rosemead, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
10.26 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
44.16 μg/m³
0
55
155
255
425
605+
27.60 ppb
0
55
71
86
201
201+
0.20 ppb
0
36
76
186
605
1005+
6.55 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Rosemead, California
Rosemead, California
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AQI 52
Moderate
10.22μg/m³
PM2.5
44.31μg/m³
PM10
28.18ppb
O3
0.20ppb
SO2
6.56ppb
NO2
0.20ppm
CO
AQI 54
Moderate
10.79μg/m³
PM2.5
46.55μg/m³
PM10
27.22ppb
O3
0.20ppb
SO2
5.91ppb
NO2
0.20ppm
CO
AQI 49
Good
9.44μg/m³
PM2.5
38.78μg/m³
PM10
26.78ppb
O3
0.21ppb
SO2
6.74ppb
NO2
0.20ppm
CO
AQI 49
Good
9.38μg/m³
PM2.5
38.29μg/m³
PM10
27.48ppb
O3
0.20ppb
SO2
6.42ppb
NO2
0.20ppm
CO
AQI 52
Moderate
10.48μg/m³
PM2.5
45.43μg/m³
PM10
27.81ppb
O3
0.20ppb
SO2
6.09ppb
NO2
0.20ppm
CO
AQI 52
Moderate
10.32μg/m³
PM2.5
39.53μg/m³
PM10
26.59ppb
O3
0.20ppb
SO2
6.38ppb
NO2
0.20ppm
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 10:00:00 on 2025-06-06.
In the last 24 hours, the best air quality in Rosemead, California was observed at 10:00:00 on 2025-06-07.
As of now, the AQI in Rosemead, California is 52, indicating Moderate conditions.
Rosemead, California air has the highest levels of PM2.5.
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 10.263 μg/m3.
The PM10 concentration in Rosemead, California is 44.165 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Rosemead, California is 0.199 ppm.
Currently, Rosemead, California has a sulfur dioxide (SO2) concentration of 0.2 ppb.
The current ozone (O3) level in Rosemead, California at the moment is 27.598 ppm.
Nitrogen dioxide (NO2) level in Rosemead, California at the moment is 6.552 ppb.
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