Stay updated with real-time air quality in Sierra Madre, 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)
56
Moderate
Sierra Madre, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
11.85 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
51.55 μg/m³
0
55
155
255
425
605+
30.28 ppb
0
55
71
86
201
201+
0.40 ppb
0
36
76
186
605
1005+
9.85 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Sierra Madre, California
Sierra Madre, California
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AQI 56
Moderate
12.43μg/m³
PM2.5
52.52μg/m³
PM10
27.66ppb
O3
0.52ppb
SO2
8.19ppb
NO2
0.19ppm
CO
AQI 58
Moderate
13.19μg/m³
PM2.5
55.35μg/m³
PM10
28.18ppb
O3
0.51ppb
SO2
7.10ppb
NO2
0.20ppm
CO
AQI 58
Moderate
12.91μg/m³
PM2.5
53.73μg/m³
PM10
26.83ppb
O3
0.52ppb
SO2
7.53ppb
NO2
0.20ppm
CO
AQI 58
Moderate
13.01μg/m³
PM2.5
53.73μg/m³
PM10
27.53ppb
O3
0.54ppb
SO2
7.93ppb
NO2
0.20ppm
CO
AQI 58
Moderate
13.30μg/m³
PM2.5
54.70μg/m³
PM10
25.96ppb
O3
0.51ppb
SO2
6.88ppb
NO2
0.20ppm
CO
AQI 58
Moderate
13.19μg/m³
PM2.5
55.35μg/m³
PM10
28.18ppb
O3
0.51ppb
SO2
7.10ppb
NO2
0.20ppm
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 Sierra Madre, California is updated every hour.
The worst air quality in Sierra Madre, California in the last 24 hours was observed at 10:00:00 on 2025-06-06.
In the last 24 hrs, the best air quality in Sierra Madre, California was observed at 10:00:00 on 2025-06-07.
The current air quality in Sierra Madre, California is 56, categorized as Moderate based on real-time data.
The most common pollutant in Sierra Madre, California is PM2.5.
If the air quality in Sierra Madre, California is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Sierra Madre, California is 11.854 μg/m3.
The current PM10 concentration at Sierra Madre, California is 51.549 μg/m3.
The current carbon monoxide (CO) concentration at Sierra Madre, California is 0.204 ppm.
The current sulfur dioxide (SO2) concentration at Sierra Madre, California is 0.396 ppb.
The current ozone (O3) concentration at Sierra Madre, California is 30.277 ppm.
The current nitrogen dioxide (NO2) concentration at Sierra Madre, California is 9.852 ppb.
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