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)
56
Moderate
Upland, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
12.26 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
40.00 μg/m³
0
55
155
255
425
605+
34.19 ppb
0
55
71
86
201
201+
0.26 ppb
0
36
76
186
605
1005+
10.75 ppb
0
54
101
361
1250
2050+
0.27 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Upland, California
Upland, California
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AQI 44
Good
8.16μg/m³
PM2.5
34.62μg/m³
PM10
16.62ppb
O3
0.26ppb
SO2
16.19ppb
NO2
0.25ppm
CO
AQI 49
Good
9.33μg/m³
PM2.5
32.41μg/m³
PM10
19.13ppb
O3
0.25ppb
SO2
11.48ppb
NO2
0.23ppm
CO
AQI 52
Moderate
9.65μg/m³
PM2.5
34.93μg/m³
PM10
15.35ppb
O3
0.29ppb
SO2
17.41ppb
NO2
0.28ppm
CO
AQI 52
Moderate
9.72μg/m³
PM2.5
31.58μg/m³
PM10
19.80ppb
O3
0.25ppb
SO2
10.16ppb
NO2
0.22ppm
CO
AQI 49
Good
8.62μg/m³
PM2.5
34.30μg/m³
PM10
17.24ppb
O3
0.26ppb
SO2
14.60ppb
NO2
0.24ppm
CO
AQI 52
Moderate
9.97μg/m³
PM2.5
31.23μg/m³
PM10
20.93ppb
O3
0.26ppb
SO2
7.94ppb
NO2
0.20ppm
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, 2025-07-11.
The best air quality in Upland, California was observed at 11:00:00 on 2025-07-12.
The air quality in Upland, California right now is Moderate, with an AQI of 52.
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 9.919 μg/m3.
Upland, California currently has a PM10 concentration of 35.226 μg/m3.
The current carbon monoxide (CO) level in Upland, California is 0.286 ppm.
The current sulfur dioxide (SO2) concentration in Upland, California is 0.38 ppb.
Upland, California currently has an ozone (O3) concentration of 19.8 ppm.
The current level of nitrogen dioxide (NO2) in Upland, California is 17.731 ppb.
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