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)
29
Good
Walnut Park, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.30 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
15.69 μg/m³
0
55
155
255
425
605+
31.31 ppb
0
55
71
86
201
201+
0.66 ppb
0
36
76
186
605
1005+
16.74 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Very high
Walnut Park, California
Walnut Park, California
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AQI 29
Good
4.30μg/m³
PM2.5
15.69μg/m³
PM10
31.31ppb
O3
0.66ppb
SO2
16.74ppb
NO2
0.24ppm
CO
AQI 28
Good
3.81μg/m³
PM2.5
15.71μg/m³
PM10
30.28ppb
O3
0.65ppb
SO2
16.27ppb
NO2
0.22ppm
CO
AQI 29
Good
4.31μg/m³
PM2.5
15.48μg/m³
PM10
31.41ppb
O3
0.65ppb
SO2
16.93ppb
NO2
0.24ppm
CO
AQI 29
Good
4.34μg/m³
PM2.5
16.23μg/m³
PM10
31.29ppb
O3
0.66ppb
SO2
16.45ppb
NO2
0.25ppm
CO
AQI 28
Good
3.81μg/m³
PM2.5
15.71μg/m³
PM10
30.28ppb
O3
0.65ppb
SO2
16.27ppb
NO2
0.22ppm
CO
AQI 29
Good
4.80μg/m³
PM2.5
17.88μg/m³
PM10
31.32ppb
O3
0.69ppb
SO2
15.06ppb
NO2
0.27ppm
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 12:00:00 on 2026-04-24.
In the last 24 hrs, the best air quality in Walnut Park, California was observed at 03:00:00 on 2026-04-23.
The current air quality in Walnut Park, California is 29, categorized as Good based on real-time data.
The most common pollutant in Walnut Park, California is O3.
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 4.305 μg/m3.
The current PM10 concentration at Walnut Park, California is 15.69 μg/m3.
The current carbon monoxide (CO) concentration at Walnut Park, California is 0.244 ppm.
The current sulfur dioxide (SO2) concentration at Walnut Park, California is 0.656 ppb.
The current ozone (O3) concentration at Walnut Park, California is 31.311 ppm.
The current nitrogen dioxide (NO2) concentration at Walnut Park, California is 16.736 ppb.
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