Air Quality Alert: Indianapolis, IN Reaches Unhealthy for Sensitive Groups Level

Current Air Quality

As of March 19, 2026, the air quality in the Indianapolis, IN reporting area has reached a level categorized as “Unhealthy for Sensitive Groups.” The primary pollutant of concern is fine particulate matter (PM2.5), which recorded an Air Quality Index (AQI) value of 103. Other measured pollutants include PM10 with an AQI of 55 (Moderate) and Ozone (O3) with an AQI of 35 (Good).

What This Means

An AQI level of 103 falls into the “Unhealthy for Sensitive Groups” category. This indicates that while the general public is not likely to be affected, members of sensitive groups may experience health effects due to the concentration of pollutants in the air.

Who Should Take Precautions

Groups at risk include people with heart or lung disease, older adults, children, and teenagers. These individuals are more likely to be affected by the presence of fine particulate matter (PM2.5) and should monitor their symptoms closely.

What You Should Do

Sensitive groups should consider reducing prolonged or heavy exertion outdoors. It is advisable to take more breaks and engage in less intense activities. Watch for symptoms such as coughing or shortness of breath. The general public is less likely to be affected and can typically continue normal outdoor activities.

Source

Data provided by EPA AirNow.