VENTURA — The Ventura County Air Pollution Control District is issuing an Air Quality Alert because unhealthy conditions are forecast for Monday, June 16.
Smoke from the Post Fire is expected to cause the Air Quality Index (AQI) to fall in the unhealthy range for everyone. Measured levels of PM2.5, particulate matter with a diameter of 2.5 micrometers or less, have reached unhealthy for sensitive groups in the Simi Valley area with the potential to reach unhealthy levels for all in the overnight and morning hours. While the largest smoke impact remains near the northeastern portions of Ventura County, elevated levels of PM 2.5 are anticipated to increase in all locations during the Sunday overnight hours and into Monday morning.