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)
75
Moderate
Calexico, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
21.59 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
98.42 μg/m³
0
55
155
255
425
605+
6.19 ppb
0
55
71
86
201
201+
0.50 ppb
0
36
76
186
605
1005+
23.12 ppb
0
54
101
361
1250
2050+
0.62 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Calexico, California
Calexico, California
Scroll To Air Quality MapLoading...
AQI 43
Good
5.72μg/m³
PM2.5
46.04μg/m³
PM10
16.98ppb
O3
0.45ppb
SO2
21.68ppb
NO2
0.58ppm
CO
AQI 44
Good
7.60μg/m³
PM2.5
46.59μg/m³
PM10
16.02ppb
O3
0.46ppb
SO2
21.35ppb
NO2
0.58ppm
CO
AQI 64
Moderate
15.88μg/m³
PM2.5
48.78μg/m³
PM10
15.92ppb
O3
0.49ppb
SO2
21.03ppb
NO2
0.58ppm
CO
AQI 64
Moderate
16.04μg/m³
PM2.5
55.25μg/m³
PM10
12.10ppb
O3
0.62ppb
SO2
18.75ppb
NO2
0.65ppm
CO
AQI 54
Moderate
11.32μg/m³
PM2.5
43.43μg/m³
PM10
18.34ppb
O3
0.57ppb
SO2
19.84ppb
NO2
0.65ppm
CO
AQI 44
Good
8.03μg/m³
PM2.5
34.38μg/m³
PM10
22.83ppb
O3
0.55ppb
SO2
20.38ppb
NO2
0.65ppm
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 06:00:00 on 2026-01-22.
In the last 24 hrs, the best air quality in Calexico, California was observed at 12:00:00 on 2026-01-23.
The current air quality in Calexico, California is 66, categorized as Moderate 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 17.085 μg/m3.
The current PM10 concentration at Calexico, California is 84.13 μg/m3.
The current carbon monoxide (CO) concentration at Calexico, California is 0.573 ppm.
The current sulfur dioxide (SO2) concentration at Calexico, California is 0.401 ppb.
The current ozone (O3) concentration at Calexico, California is 9.153 ppm.
The current nitrogen dioxide (NO2) concentration at Calexico, California is 25.205 ppb.
All Rights Reserved © Ambee Inc. 2025