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)
44
Good
Calexico, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.81 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
28.39 μg/m³
0
55
155
255
425
605+
46.98 ppb
0
55
71
86
201
201+
0.10 ppb
0
36
76
186
605
1005+
10.52 ppb
0
54
101
361
1250
2050+
0.30 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Calexico, California
Calexico, California
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AQI 82
Moderate
12.98μg/m³
PM2.5
117.74μg/m³
PM10
47.99ppb
O3
0.35ppb
SO2
12.89ppb
NO2
0.32ppm
CO
AQI 70
Moderate
10.88μg/m³
PM2.5
93.76μg/m³
PM10
46.69ppb
O3
0.34ppb
SO2
11.48ppb
NO2
0.32ppm
CO
AQI 41
Good
4.13μg/m³
PM2.5
28.18μg/m³
PM10
44.18ppb
O3
0.37ppb
SO2
4.94ppb
NO2
0.30ppm
CO
AQI 38
Good
7.28μg/m³
PM2.5
40.20μg/m³
PM10
41.18ppb
O3
0.27ppb
SO2
6.51ppb
NO2
0.22ppm
CO
AQI 49
Good
5.94μg/m³
PM2.5
40.63μg/m³
PM10
52.62ppb
O3
0.29ppb
SO2
10.09ppb
NO2
0.22ppm
CO
AQI 71
Moderate
4.94μg/m³
PM2.5
40.05μg/m³
PM10
60.70ppb
O3
0.30ppb
SO2
12.55ppb
NO2
0.21ppm
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 12:00:00 on 2026-04-24.
In the last 24 hrs, the best air quality in Calexico, California was observed at 07:00:00 on 2026-04-23.
The current air quality in Calexico, California is 44, categorized as Good based on real-time data.
The most common pollutant in Calexico, California is O3.
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 5.809 μg/m3.
The current PM10 concentration at Calexico, California is 28.393 μg/m3.
The current carbon monoxide (CO) concentration at Calexico, California is 0.302 ppm.
The current sulfur dioxide (SO2) concentration at Calexico, California is 0.105 ppb.
The current ozone (O3) concentration at Calexico, California is 46.985 ppm.
The current nitrogen dioxide (NO2) concentration at Calexico, California is 10.519 ppb.
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