Stay updated with real-time air quality in San Juan City, Texas 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
San Juan City, Texas
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
15.53 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
57.21 μg/m³
0
55
155
255
425
605+
20.68 ppb
0
55
71
86
201
201+
0.76 ppb
0
36
76
186
605
1005+
5.02 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
San Juan City, Texas
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AQI 64
Moderate
15.53μg/m³
PM2.5
57.21μg/m³
PM10
20.68ppb
O3
0.76ppb
SO2
5.02ppb
NO2
0.24ppm
CO
AQI 64
Moderate
16.16μg/m³
PM2.5
48.96μg/m³
PM10
20.11ppb
O3
0.76ppb
SO2
4.74ppb
NO2
0.24ppm
CO
AQI 62
Moderate
15.41μg/m³
PM2.5
57.64μg/m³
PM10
20.71ppb
O3
0.76ppb
SO2
5.04ppb
NO2
0.24ppm
CO
AQI 66
Moderate
16.74μg/m³
PM2.5
41.37μg/m³
PM10
19.58ppb
O3
0.76ppb
SO2
4.49ppb
NO2
0.24ppm
CO
AQI 62
Moderate
14.67μg/m³
PM2.5
66.75μg/m³
PM10
19.79ppb
O3
0.76ppb
SO2
5.34ppb
NO2
0.24ppm
CO
AQI 62
Moderate
15.03μg/m³
PM2.5
66.51μg/m³
PM10
21.31ppb
O3
0.77ppb
SO2
5.31ppb
NO2
0.24ppm
CO
Air quality data and pollutant measurements for Texas, 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 San Juan City, Texas is updated every hour.
The worst air quality in San Juan City, Texas in the last 24 hours was observed at 07:00:00 on 2026-03-07.
In the last 24 hrs, the best air quality in San Juan City, Texas was observed at 01:00:00 on 2026-03-06.
The current air quality in San Juan City, Texas is 64, categorized as Moderate based on real-time data.
The most common pollutant in San Juan City, Texas is PM2.5.
If the air quality in San Juan City, Texas is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at San Juan City, Texas is 15.534 μg/m3.
The current PM10 concentration at San Juan City, Texas is 57.213 μg/m3.
The current carbon monoxide (CO) concentration at San Juan City, Texas is 0.243 ppm.
The current sulfur dioxide (SO2) concentration at San Juan City, Texas is 0.763 ppb.
The current ozone (O3) concentration at San Juan City, Texas is 20.68 ppm.
The current nitrogen dioxide (NO2) concentration at San Juan City, Texas is 5.017 ppb.
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