Stay updated with real-time air quality in Alhambra, 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
Alhambra, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.64 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
19.67 μg/m³
0
55
155
255
425
605+
34.31 ppb
0
55
71
86
201
201+
0.75 ppb
0
36
76
186
605
1005+
7.67 ppb
0
54
101
361
1250
2050+
0.34 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Very high
Alhambra, California
Alhambra, California
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AQI 33
Good
5.66μg/m³
PM2.5
20.40μg/m³
PM10
34.07ppb
O3
0.75ppb
SO2
7.86ppb
NO2
0.34ppm
CO
AQI 33
Good
5.61μg/m³
PM2.5
18.87μg/m³
PM10
34.69ppb
O3
0.75ppb
SO2
6.86ppb
NO2
0.34ppm
CO
AQI 33
Good
5.58μg/m³
PM2.5
19.16μg/m³
PM10
34.73ppb
O3
0.75ppb
SO2
6.06ppb
NO2
0.34ppm
CO
AQI 33
Good
5.77μg/m³
PM2.5
22.09μg/m³
PM10
33.17ppb
O3
0.75ppb
SO2
10.31ppb
NO2
0.34ppm
CO
AQI 33
Good
5.70μg/m³
PM2.5
20.50μg/m³
PM10
34.38ppb
O3
0.75ppb
SO2
7.38ppb
NO2
0.35ppm
CO
AQI 33
Good
5.87μg/m³
PM2.5
23.72μg/m³
PM10
33.29ppb
O3
0.76ppb
SO2
9.50ppb
NO2
0.36ppm
CO
Air quality data and pollutant measurements for California, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Alhambra, California is updated every hour.
The worst air quality in Alhambra, California in the last 24 hours was observed at 12:00:00 on 2026-04-24.
In the last 24 hrs, the best air quality in Alhambra, California was observed at 10:00:00 on 2026-04-23.
The current air quality in Alhambra, California is 33, categorized as Good based on real-time data.
The most common pollutant in Alhambra, California is PM2.5.
If the air quality in Alhambra, California is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Alhambra, California is 5.641 μg/m3.
The current PM10 concentration at Alhambra, California is 19.672 μg/m3.
The current carbon monoxide (CO) concentration at Alhambra, California is 0.337 ppm.
The current sulfur dioxide (SO2) concentration at Alhambra, California is 0.748 ppb.
The current ozone (O3) concentration at Alhambra, California is 34.313 ppm.
The current nitrogen dioxide (NO2) concentration at Alhambra, California is 7.666 ppb.
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