Stay updated with real-time air quality in Claremont, 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
Claremont, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
16.26 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
41.82 μg/m³
0
55
155
255
425
605+
29.50 ppb
0
55
71
86
201
201+
0.23 ppb
0
36
76
186
605
1005+
9.36 ppb
0
54
101
361
1250
2050+
0.29 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Claremont, California
Claremont, California
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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
9.97μg/m³
PM2.5
31.07μg/m³
PM10
20.59ppb
O3
0.25ppb
SO2
8.58ppb
NO2
0.21ppm
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
AQI 49
Good
8.73μg/m³
PM2.5
34.25μg/m³
PM10
16.76ppb
O3
0.27ppb
SO2
15.79ppb
NO2
0.25ppm
CO
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 54
Moderate
10.53μg/m³
PM2.5
28.69μg/m³
PM10
21.09ppb
O3
0.24ppb
SO2
7.55ppb
NO2
0.20ppm
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 Claremont, California is updated on an hourly basis.
The worst air quality in Claremont, California was recorded at 11:00:00 on 2025-07-11.
The best air quality in Claremont, California was recorded at 08:00:00 on 2025-07-12.
The real-time air quality index in Claremont, California is 52, currently categorized as Moderate.
The most common pollutant in Claremont, California is PM2.5.
If the air quality in Claremont, California is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Claremont, California at present are 9.725 μg/m3.
The current PM10 levels in Claremont, California are 31.584 μg/m3.
The current carbon monoxide (CO) level in Claremont, California is 0.22 ppm.
The current sulfur dioxide (SO2) levels in Claremont, California are 0.253 ppb.
The current ozone (O3) levels at Claremont, California is 19.798 ppm.
The current nitrogen dioxide (NO2) levels at Claremont, California is 10.165 ppb.
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