(Early morning pollution)…Air Quality Alerts issued)….Both were issued in the early morning hours.
The Air Pollution Control District issued one alert at 1:00 am Saturday morning. Another was issued at Mid-night Sunday morning. They were due to high levels of PM 2.5 in the Calexico area. Both mornings the air quality reached a condition of unhealthy for sensitive groups. Both days, levels lowered by sun-up, for an air quality condition to moderate to good. PM 2.5 is a finite particulate matter, created mostly from vehicle emissions. The rest of the County maintained an air quality of good over the weekend.