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)
49
Good
Calexico, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.09 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
32.29 μg/m³
0
55
155
255
425
605+
27.14 ppb
0
55
71
86
201
201+
0.20 ppb
0
36
76
186
605
1005+
4.71 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Calexico, California
Calexico, California
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AQI 52
Moderate
9.69μg/m³
PM2.5
49.92μg/m³
PM10
31.99ppb
O3
0.27ppb
SO2
7.05ppb
NO2
0.18ppm
CO
AQI 49
Good
8.55μg/m³
PM2.5
42.10μg/m³
PM10
30.94ppb
O3
0.27ppb
SO2
6.60ppb
NO2
0.18ppm
CO
AQI 29
Good
4.50μg/m³
PM2.5
21.01μg/m³
PM10
30.79ppb
O3
0.26ppb
SO2
5.58ppb
NO2
0.18ppm
CO
AQI 33
Good
6.04μg/m³
PM2.5
30.05μg/m³
PM10
23.15ppb
O3
0.27ppb
SO2
4.76ppb
NO2
0.38ppm
CO
AQI 33
Good
6.21μg/m³
PM2.5
24.44μg/m³
PM10
32.38ppb
O3
0.26ppb
SO2
4.79ppb
NO2
0.37ppm
CO
AQI 36
Good
6.21μg/m³
PM2.5
20.17μg/m³
PM10
38.76ppb
O3
0.26ppb
SO2
4.76ppb
NO2
0.38ppm
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 11:00:00 on 2026-06-07.
In the last 24 hrs, the best air quality in Calexico, California was observed at 11:00:00 on 2026-06-08.
The current air quality in Calexico, California is 49, categorized as Good based on real-time data.
The most common pollutant in Calexico, California is PM2.5.
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 9.087 μg/m3.
The current PM10 concentration at Calexico, California is 32.286 μg/m3.
The current carbon monoxide (CO) concentration at Calexico, California is 0.202 ppm.
The current sulfur dioxide (SO2) concentration at Calexico, California is 0.202 ppb.
The current ozone (O3) concentration at Calexico, California is 27.139 ppm.
The current nitrogen dioxide (NO2) concentration at Calexico, California is 4.706 ppb.
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