San Antonio Air Quality Alert: PM10 Levels Reach Unhealthy for Sensitive Groups Category

Current Air Quality

On March 15, 2026, the reporting area of San Antonio, TX, recorded an Air Quality Index (AQI) of 117. The primary pollutant of concern is PM10, which reached the “Unhealthy for Sensitive Groups” category. Other measured pollutants in the area include PM2.5, which recorded an AQI of 77 (Moderate), and Ozone (O3), which recorded an AQI of 38 (Good).

What This Means

An AQI level between 101 and 150 indicates that air quality is unhealthy for sensitive groups. At this level, members of the general public are less likely to be affected, but individuals with specific health conditions may experience adverse effects.

Who Should Take Precautions

Groups at increased risk from PM10 exposure include people with heart or lung disease, older adults, and children. These individuals should be mindful of their activity levels while air quality remains in this category.

What You Should Do

Members of sensitive groups should consider reducing prolonged or heavy outdoor exertion. While it is generally acceptable to be active outdoors, those at risk should take more breaks, choose less intense activities, and monitor for symptoms such as coughing or shortness of breath. The general public is not expected to be affected.

Source

Data provided by EPA AirNow.