Detroit Air Quality Reaches Unhealthy for Sensitive Groups Level (AQI 139)
Air quality in Detroit, MI, has reached an AQI of 139 for fine particles (PM2.5), making it Unhealthy for Sensitive Groups on February 14, 2026.
Current Air Quality
On February 14, 2026, the Detroit, MI reporting area recorded an Air Quality Index (AQI) of 139. The primary pollutant of concern is fine particulate matter (PM2.5), which is currently in the “Unhealthy for Sensitive Groups” category. Other pollutants measured in the area include Ozone (O3) with an AQI of 28 (Good) and PM10 with an AQI of 39 (Good).
What This Means
An AQI of 139 falls into the “Unhealthy for Sensitive Groups” category. According to standard EPA guidance, this level indicates that members of sensitive groups may experience health effects, though the general public is less likely to be affected.
Who Should Take Precautions
Groups at increased risk from this level of air quality include people with heart or lung disease, older adults, children, and teenagers. These individuals are more susceptible to the effects of fine particulate matter (PM2.5).
What You Should Do
Members of sensitive groups should reduce prolonged or heavy exertion outdoors. While it is generally safe to be active outside, 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 at this AQI level.
Source
Data provided by EPA AirNow.
Source: EPA Official Notice