Wildfire smoke and outdoor events

Poor outdoor air quality related to unhealthy pollution levels can have major health effects on community members. The purpose of this guidance is to provide information on what is considered to be unhealthy levels of air pollution so that individuals, event planners and decisionmakers within organizations can determine when they should consider limiting outdoor activities, moving, or cancelling outdoor events due to poor outdoor air quality. For more information about the Air Quality Index (AQI) visit airnow.gov.