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

Good
Fine
Moderate
Poor
Very poor
Hazardous
12.35 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
50.56 μg/m³
0
55
155
255
425
605+
48.57 ppb
0
55
71
86
201
201+
0.86 ppb
0
36
76
186
605
1005+
3.95 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Walnut Park, California
Walnut Park, California
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AQI 58
Moderate
13.43μg/m³
PM2.5
57.66μg/m³
PM10
54.20ppb
O3
1.08ppb
SO2
3.39ppb
NO2
0.23ppm
CO
AQI 58
Moderate
12.76μg/m³
PM2.5
55.55μg/m³
PM10
54.10ppb
O3
1.13ppb
SO2
3.39ppb
NO2
0.22ppm
CO
AQI 58
Moderate
12.91μg/m³
PM2.5
53.94μg/m³
PM10
53.78ppb
O3
1.10ppb
SO2
3.55ppb
NO2
0.23ppm
CO
AQI 60
Moderate
13.79μg/m³
PM2.5
60.19μg/m³
PM10
54.37ppb
O3
1.08ppb
SO2
3.32ppb
NO2
0.23ppm
CO
AQI 58
Moderate
12.76μg/m³
PM2.5
55.55μg/m³
PM10
54.10ppb
O3
1.13ppb
SO2
3.39ppb
NO2
0.22ppm
CO
AQI 60
Moderate
14.42μg/m³
PM2.5
63.45μg/m³
PM10
55.16ppb
O3
1.05ppb
SO2
3.38ppb
NO2
0.24ppm
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 Walnut Park, California is updated every hour.
The worst air quality in Walnut Park, California in the last 24 hours was observed at 09:00:00 on 2026-08-23.
In the last 24 hrs, the best air quality in Walnut Park, California was observed at 04:00:00 on 2026-08-23.
The current air quality in Walnut Park, California is 56, categorized as Moderate based on real-time data.
The most common pollutant in Walnut Park, California is PM2.5.
If the air quality in Walnut Park, California is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Walnut Park, California is 12.345 μg/m3.
The current PM10 concentration at Walnut Park, California is 50.562 μg/m3.
The current carbon monoxide (CO) concentration at Walnut Park, California is 0.231 ppm.
The current sulfur dioxide (SO2) concentration at Walnut Park, California is 0.861 ppb.
The current ozone (O3) concentration at Walnut Park, California is 48.57 ppm.
The current nitrogen dioxide (NO2) concentration at Walnut Park, California is 3.949 ppb.
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