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)
33
Good
Upland, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.72 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
11.55 μg/m³
0
55
155
255
425
605+
35.86 ppb
0
55
71
86
201
201+
0.37 ppb
0
36
76
186
605
1005+
21.81 ppb
0
54
101
361
1250
2050+
0.28 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Upland, California
Upland, California
Scroll To Air Quality MapLoading...
AQI 36
Good
4.49μg/m³
PM2.5
8.09μg/m³
PM10
38.74ppb
O3
0.31ppb
SO2
21.40ppb
NO2
0.25ppm
CO
AQI 35
Good
4.39μg/m³
PM2.5
8.30μg/m³
PM10
38.21ppb
O3
0.32ppb
SO2
17.69ppb
NO2
0.25ppm
CO
AQI 34
Good
4.17μg/m³
PM2.5
8.65μg/m³
PM10
37.02ppb
O3
0.31ppb
SO2
18.18ppb
NO2
0.25ppm
CO
AQI 37
Good
3.04μg/m³
PM2.5
8.56μg/m³
PM10
39.93ppb
O3
0.32ppb
SO2
17.59ppb
NO2
0.24ppm
CO
AQI 36
Good
4.47μg/m³
PM2.5
8.13μg/m³
PM10
38.59ppb
O3
0.31ppb
SO2
19.86ppb
NO2
0.25ppm
CO
AQI 35
Good
3.93μg/m³
PM2.5
8.11μg/m³
PM10
38.24ppb
O3
0.32ppb
SO2
13.39ppb
NO2
0.25ppm
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 02:00:00, 2026-10-22.
The best air quality in Upland, California was observed at 03:00:00 on 2026-10-22.
The air quality in Upland, California right now is Good, with an AQI of 33.
In Upland, California, O3 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 2.723 μg/m3.
Upland, California currently has a PM10 concentration of 11.548 μg/m3.
The current carbon monoxide (CO) level in Upland, California is 0.285 ppm.
The current sulfur dioxide (SO2) concentration in Upland, California is 0.373 ppb.
Upland, California currently has an ozone (O3) concentration of 35.863 ppm.
The current level of nitrogen dioxide (NO2) in Upland, California is 21.808 ppb.
All Rights Reserved © Ambee Inc. 2025