(Air Quality in Calexico Wednesday)….It was Unhealthy for Sensitive Groups.
An Air Quality Alert was issued at 11:00 am Wednesday. The Air Pollution Control District says the Ethel Street Monitoring Station recorded an Air Quality Index of 122 for PM 2.5. That is high enough for 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 are those with respiratory or heart disease, the elderly and children. The US Environmental Protection Agency cautions people in the sensitive group to reduce prolonged or heavy exertion. One way to reduce exposure to unhealthy levels of particulate matter is to remain indoors until levels are lower. Thursday air quality levels were moderate to good throughout the County.