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)
90
Moderate
Walnut Park, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
30.37 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
110.68 μg/m³
0
55
155
255
425
605+
29.70 ppb
0
55
71
86
201
201+
0.65 ppb
0
36
76
186
605
1005+
5.89 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Walnut Park, California
Walnut Park, California
Scroll To Air Quality MapLoading...
AQI 82
Moderate
26.40μg/m³
PM2.5
110.61μg/m³
PM10
35.53ppb
O3
0.68ppb
SO2
4.86ppb
NO2
0.13ppm
CO
AQI 64
Moderate
15.77μg/m³
PM2.5
67.89μg/m³
PM10
36.17ppb
O3
0.65ppb
SO2
6.24ppb
NO2
0.12ppm
CO
AQI 73
Moderate
21.07μg/m³
PM2.5
86.83μg/m³
PM10
35.95ppb
O3
0.68ppb
SO2
4.95ppb
NO2
0.12ppm
CO
AQI 94
Moderate
31.85μg/m³
PM2.5
134.52μg/m³
PM10
35.24ppb
O3
0.68ppb
SO2
4.79ppb
NO2
0.13ppm
CO
AQI 64
Moderate
15.77μg/m³
PM2.5
67.89μg/m³
PM10
36.17ppb
O3
0.65ppb
SO2
6.24ppb
NO2
0.12ppm
CO
AQI 107
Unhealthy for sensitive groups
37.92μg/m³
PM2.5
160.61μg/m³
PM10
34.89ppb
O3
0.68ppb
SO2
4.71ppb
NO2
0.14ppm
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 04:00:00 on 2026-06-24.
In the last 24 hrs, the best air quality in Walnut Park, California was observed at 09:00:00 on 2026-06-23.
The current air quality in Walnut Park, California is 82, 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 26.402 μg/m3.
The current PM10 concentration at Walnut Park, California is 110.615 μg/m3.
The current carbon monoxide (CO) concentration at Walnut Park, California is 0.129 ppm.
The current sulfur dioxide (SO2) concentration at Walnut Park, California is 0.68 ppb.
The current ozone (O3) concentration at Walnut Park, California is 35.529 ppm.
The current nitrogen dioxide (NO2) concentration at Walnut Park, California is 4.857 ppb.
All Rights Reserved © Ambee Inc. 2025