Unhealthy Air Quality Alert for Seattle-Bellevue-Kent Valley: AQI Reaches 193
On February 27, 2026, air quality in the Seattle-Bellevue-Kent Valley area reached an AQI of 193, categorized as Unhealthy primarily due to fine particulate matter (PM2.5).
Current Air Quality
As of February 27, 2026, the Seattle-Bellevue-Kent Valley area in Washington is experiencing Unhealthy air quality. The primary pollutant of concern is fine particulate matter (PM2.5), which has reached an Air Quality Index (AQI) value of 193. Other measured pollutants include Ozone (O3) with an AQI of 31 (Good) and PM10 with an AQI of 7 (Good).
What This Means
An AQI in the “Unhealthy” range (151-200) indicates that the air is unhealthy for the general public. At this level, everyone may begin to experience health effects, and members of sensitive groups may experience more serious health effects.
Who Should Take Precautions
While the entire population may be affected, specific groups are at higher risk. These include people with heart or lung disease, older adults, children, and people of lower socioeconomic status.
What You Should Do
To protect your health, it is recommended to reduce prolonged or heavy exertion outdoors. While it is generally acceptable to be active outside, you should take more breaks and engage in less intense activities. Sensitive groups should avoid prolonged or heavy exertion and consider moving activities indoors or rescheduling them to a time when air quality improves.
Source
Data provided by EPA AirNow.
Source: EPA Official Notice