Stay updated with real-time air quality in Calexico, 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)
42
Good
Calexico, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.84 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
44.87 μg/m³
0
55
155
255
425
605+
17.16 ppb
0
55
71
86
201
201+
0.40 ppb
0
36
76
186
605
1005+
7.58 ppb
0
54
101
361
1250
2050+
0.26 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Calexico, California
Calexico, California
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AQI 44
Good
7.70μg/m³
PM2.5
42.98μg/m³
PM10
24.99ppb
O3
0.43ppb
SO2
6.83ppb
NO2
0.26ppm
CO
AQI 44
Good
7.76μg/m³
PM2.5
39.29μg/m³
PM10
24.25ppb
O3
0.43ppb
SO2
6.76ppb
NO2
0.26ppm
CO
AQI 52
Moderate
10.25μg/m³
PM2.5
23.08μg/m³
PM10
22.94ppb
O3
0.44ppb
SO2
6.38ppb
NO2
0.26ppm
CO
AQI 33
Good
6.34μg/m³
PM2.5
21.98μg/m³
PM10
23.50ppb
O3
0.46ppb
SO2
5.99ppb
NO2
0.16ppm
CO
AQI 38
Good
6.58μg/m³
PM2.5
24.77μg/m³
PM10
21.00ppb
O3
0.47ppb
SO2
5.95ppb
NO2
0.17ppm
CO
AQI 38
Good
6.50μg/m³
PM2.5
24.04μg/m³
PM10
21.00ppb
O3
0.47ppb
SO2
5.89ppb
NO2
0.16ppm
CO
Air quality data and pollutant measurements for California, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Calexico, California is updated every hour.
The worst air quality in Calexico, California in the last 24 hours was observed at 05:00:00 on 2026-08-14.
In the last 24 hrs, the best air quality in Calexico, California was observed at 02:00:00 on 2026-08-14.
The current air quality in Calexico, California is 42, categorized as Good based on real-time data.
The most common pollutant in Calexico, California is PM10.
If the air quality in Calexico, California is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Calexico, California is 5.843 μg/m3.
The current PM10 concentration at Calexico, California is 44.866 μg/m3.
The current carbon monoxide (CO) concentration at Calexico, California is 0.263 ppm.
The current sulfur dioxide (SO2) concentration at Calexico, California is 0.401 ppb.
The current ozone (O3) concentration at Calexico, California is 17.158 ppm.
The current nitrogen dioxide (NO2) concentration at Calexico, California is 7.581 ppb.
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