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)
73
Moderate
Walnut Park, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
21.37 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
94.18 μg/m³
0
55
155
255
425
605+
24.89 ppb
0
55
71
86
201
201+
0.65 ppb
0
36
76
186
605
1005+
6.49 ppb
0
54
101
361
1250
2050+
0.12 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 90
Moderate
30.37μg/m³
PM2.5
110.68μg/m³
PM10
29.70ppb
O3
0.65ppb
SO2
5.89ppb
NO2
0.18ppm
CO
AQI 67
Moderate
17.74μg/m³
PM2.5
68.95μg/m³
PM10
30.46ppb
O3
0.63ppb
SO2
6.52ppb
NO2
0.14ppm
CO
AQI 79
Moderate
23.55μg/m³
PM2.5
86.08μg/m³
PM10
29.87ppb
O3
0.66ppb
SO2
5.70ppb
NO2
0.17ppm
CO
AQI 107
Unhealthy for sensitive groups
37.58μg/m³
PM2.5
136.37μg/m³
PM10
29.59ppb
O3
0.65ppb
SO2
6.02ppb
NO2
0.18ppm
CO
AQI 67
Moderate
17.74μg/m³
PM2.5
68.95μg/m³
PM10
30.46ppb
O3
0.63ppb
SO2
6.52ppb
NO2
0.14ppm
CO
AQI 124
Unhealthy for sensitive groups
45.41μg/m³
PM2.5
163.94μg/m³
PM10
29.39ppb
O3
0.65ppb
SO2
6.24ppb
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 Walnut Park, California is updated every hour.
The worst air quality in Walnut Park, California in the last 24 hours was observed at 10:00:00 on 2026-06-23.
In the last 24 hrs, the best air quality in Walnut Park, California was observed at 11:00:00 on 2026-06-23.
The current air quality in Walnut Park, California is 90, 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 30.372 μg/m3.
The current PM10 concentration at Walnut Park, California is 110.679 μg/m3.
The current carbon monoxide (CO) concentration at Walnut Park, California is 0.177 ppm.
The current sulfur dioxide (SO2) concentration at Walnut Park, California is 0.654 ppb.
The current ozone (O3) concentration at Walnut Park, California is 29.705 ppm.
The current nitrogen dioxide (NO2) concentration at Walnut Park, California is 5.889 ppb.
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