(High levels of PM 2.5)….It was reported Sunday.
The Air Pollution Control District issued an Air Quality Alert for the Ethel Street monitoring station in Calexico at 11:00 am. The Air Quality Index for PM 2.5 reached a level of 149. That translated to an air quality condition of Unhealthy for Sensitive Groups. PM 2.5 is a finite particulate matter, created mostly from vehicle emissions. The Sensitive Groups affected by the high levels of the Particulate matter are people with respiratory or heart disease, the elderly and children.