Stay updated with real-time air quality in Upland, 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)
66
Moderate
Upland, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
16.55 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
69.82 μg/m³
0
55
155
255
425
605+
25.37 ppb
0
55
71
86
201
201+
0.83 ppb
0
36
76
186
605
1005+
28.40 ppb
0
54
101
361
1250
2050+
0.41 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Upland, California
Upland, California
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AQI 66
Moderate
16.89μg/m³
PM2.5
73.42μg/m³
PM10
16.16ppb
O3
0.74ppb
SO2
31.97ppb
NO2
0.43ppm
CO
AQI 64
Moderate
16.33μg/m³
PM2.5
68.02μg/m³
PM10
17.97ppb
O3
0.75ppb
SO2
27.74ppb
NO2
0.43ppm
CO
AQI 67
Moderate
17.68μg/m³
PM2.5
74.06μg/m³
PM10
16.04ppb
O3
0.79ppb
SO2
29.61ppb
NO2
0.43ppm
CO
AQI 56
Moderate
12.14μg/m³
PM2.5
42.98μg/m³
PM10
19.19ppb
O3
0.73ppb
SO2
22.48ppb
NO2
0.43ppm
CO
AQI 66
Moderate
16.77μg/m³
PM2.5
72.00μg/m³
PM10
16.78ppb
O3
0.74ppb
SO2
30.36ppb
NO2
0.43ppm
CO
AQI 62
Moderate
14.73μg/m³
PM2.5
54.31μg/m³
PM10
20.49ppb
O3
0.73ppb
SO2
21.54ppb
NO2
0.43ppm
CO
The air quality data for California, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Upland, California are available every hour.
Upland, California experienced its worst air quality at 10:00:00, 2026-08-09.
The best air quality in Upland, California was observed at 06:00:00 on 2026-08-10.
The air quality in Upland, California right now is Moderate, with an AQI of 66.
In Upland, California, PM2.5 is the most frequently found pollutant.
When air quality in Upland, California is compromised, staying indoors and wearing a mask can reduce health risks.
Upland, California currently has a PM2.5 concentration of 16.876 μg/m3.
Upland, California currently has a PM10 concentration of 71.494 μg/m3.
The current carbon monoxide (CO) level in Upland, California is 0.428 ppm.
The current sulfur dioxide (SO2) concentration in Upland, California is 0.765 ppb.
Upland, California currently has an ozone (O3) concentration of 16.797 ppm.
The current level of nitrogen dioxide (NO2) in Upland, California is 29.516 ppb.
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