The Arizona Department of Environmental Quality has issued an Ozone High Pollution Advisory in Maricopa County for Friday, May 13 through Sunday, May 15.
- Wood burning in residential fireplaces, chimeneas, outdoor fire pits, and similar outdoor fires is prohibited in Maricopa County. This includes individuals and businesses which have burn permits for open burning.
- Employees and contractors of government entities are prohibited from operating leaf blowers. Residents are encouraged to avoid leaf blowing during HPAs.