The Maricopa County Air Quality Department (MCAQD) encourages commercial and resort properties, golf courses, government agencies, and residents to take dust reduction measures when planting winter ryegrass this fall.

This High Pollution Advisory is due to ozone levels expected to accumulate enough to exceed the federal health standard for ozone.

This High Pollution Advisory is due to ozone levels expected to accumulate enough to exceed the federal health standard for ozone.

Particle pollutant levels expected to accumulate enough to exceed the federal health standard for PM10 (dust).

This High Pollution Advisory is due to ozone levels expected to accumulate enough to exceed the federal health standard for ozone.