Stay updated with real-time air quality in Willowbrook, 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)
64
Moderate
Willowbrook, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
15.51 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
63.39 μg/m³
0
55
155
255
425
605+
43.38 ppb
0
55
71
86
201
201+
1.16 ppb
0
36
76
186
605
1005+
7.83 ppb
0
54
101
361
1250
2050+
0.13 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Willowbrook, California
Willowbrook, California
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AQI 64
Moderate
15.95μg/m³
PM2.5
71.59μg/m³
PM10
46.73ppb
O3
0.93ppb
SO2
12.93ppb
NO2
0.26ppm
CO
AQI 64
Moderate
15.86μg/m³
PM2.5
71.22μg/m³
PM10
46.34ppb
O3
0.93ppb
SO2
13.39ppb
NO2
0.26ppm
CO
AQI 64
Moderate
15.96μg/m³
PM2.5
70.63μg/m³
PM10
49.32ppb
O3
0.96ppb
SO2
12.18ppb
NO2
0.25ppm
CO
AQI 66
Moderate
16.59μg/m³
PM2.5
74.52μg/m³
PM10
46.45ppb
O3
0.93ppb
SO2
12.58ppb
NO2
0.26ppm
CO
AQI 62
Moderate
14.62μg/m³
PM2.5
65.62μg/m³
PM10
46.39ppb
O3
0.93ppb
SO2
14.03ppb
NO2
0.26ppm
CO
AQI 64
Moderate
15.61μg/m³
PM2.5
67.78μg/m³
PM10
50.74ppb
O3
0.98ppb
SO2
11.16ppb
NO2
0.24ppm
CO
Air quality measurements for California, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Willowbrook, California is updated on an hourly basis.
The worst air quality in Willowbrook, California was recorded at 09:00:00 on 2026-07-23.
The best air quality in Willowbrook, California was recorded at 04:00:00 on 2026-07-23.
The real-time air quality index in Willowbrook, California is 64, currently categorized as Moderate.
The most common pollutant in Willowbrook, California is PM2.5.
If the air quality in Willowbrook, California is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Willowbrook, California at present are 15.512 μg/m3.
The current PM10 levels in Willowbrook, California are 63.394 μg/m3.
The current carbon monoxide (CO) level in Willowbrook, California is 0.125 ppm.
The current sulfur dioxide (SO2) levels in Willowbrook, California are 1.158 ppb.
The current ozone (O3) levels at Willowbrook, California is 43.383 ppm.
The current nitrogen dioxide (NO2) levels at Willowbrook, California is 7.828 ppb.
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