(Air Pollution levels lower by morning)…The Air Pollution Control District issued an Air Alert at 1:00 am Friday.
It was for the Calexico area. Air Quality had reached high levels of PM 2.5, for a condition of Unhealthy for Sensitive Groups. By 6:00 am The Particulate Matter had lowered enough for a condition of Moderate air quality. The APCD says increased levels have been recorded at the Ethel Street Monitoring Station the last few night. PM 2.5 is a finite particulate matter, produced mostly from vehicle emissions.