pollution

The Arizona Department of Environmental Quality (ADEQ) is issuing a dust High Pollution Advisory (HPA) for Thursday, April 12, 2018, for coarse particulate matter (PM10) in Maricopa County. This HPA is due to particle pollutant levels expected to accumulate enough to exceed the federal health standard for PM10.

The Arizona Department of Environmental Quality (ADEQ) has issued a PM-10 Health Watch for Maricopa County, effective Friday, February 9, 2018. This health watch is due to pollution levels expected to approach the federal health standard.

This health watch includes the following restrictions:
Open burning and wood burning fireplace activity is restricted in Maricopa County. This includes individuals and businesses which have burn permits for open burning.

Please take action during the health watch by following the tips below:

The Arizona Department of Environmental Quality (ADEQ) is issuing an Ozone High Pollution Advisory (HPA) for Maricopa County, effective Friday, August 18, 2017. This HPA is due to ozone levels expected to accumulate enough to exceed the federal health standard for ozone.

The Arizona Department of Environmental Quality (ADEQ) is issuing an ozone High Pollution Advisory (HPA) for Maricopa County, effective Friday & Saturday, July 14 & 15, 2017. This HPA is due to ozone levels expected to accumulate enough to exceed the federal health standard for ozone.

The Arizona Department of Environmental Quality (ADEQ) is issuing an Ozone High Pollution Advisory (HPA) for Maricopa County, effective Friday, June 30, 2017. This HPA is due to ozone levels expected to accumulate enough to exceed the federal health standard for ozone.

The Arizona Department of Environmental Quality (ADEQ) is issuing an Ozone High Pollution Advisory (HPA) for Maricopa County, effective Thursday, May 4, 2017. This HPA is due to ozone levels expected to accumulate enough to exceed the federal health standard for ozone.

The Arizona Department of Environmental Quality (ADEQ) is issuing an Ozone High Pollution Advisory (HPA) for Maricopa County, effective Tuesday, May 2 and Wednesday, May 3, 2017. This HPA is due to ozone levels expected to accumulate enough to exceed the federal health standard for ozone.