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Maricopa County Parks and Recreation

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Ozone High Pollution Advisory Extended - April 26 and 27

 

The Arizona Department of Environmental Quality has extended the Ozone High Pollution Advisory for Thursday, April 26 through Friday, April 27, 2018.

PM-10 High Pollution Advisory

PM-10 (sometimes referred to as PM10) is coarse particulate matter less than 10 micrometers in diameter that are generally emitted from sources such as vehicles traveling on unpaved roads, materials handling, and crushing and grinding operations, as well as windblown dust.

  • Employees and contractors of government entities are prohibited from operating leaf blowers.
  • Woodburning in residential fireplaces, chimineas, outdoor fire pits and similar outdoor fires is not allowed.
  • Off-Highway Vehicles (OHVs) being used in Area A is not allowed.

Ozone High Pollution Advisory

Ground level ozone is formed by a chemical reaction that needs heat from sunlight, nitrogen oxides and volatile organic compounds (VOCs) to form. The months of April through September make up our Valley’s longer-than-normal “ozone season.”

  • Employees and contractors of government entities are prohibited from operating leaf blowers.
  • Woodburning in residential fireplaces, chimineas, outdoor fire pits and similar outdoor fires is not allowed.

PM-2.5 High Pollution Advisory

PM-2.5 (sometimes referred to as PM2.5 or PM25) is fine particulate matter less than 2.5 micrometers in diameter that result from fuel combustion from motor vehicles, power generation, and industrial facilities, as well as from residential fireplaces and wood stoves.

  • Employees and contractors of government entities are prohibited from operating leaf blowers.
  • Woodburning in residential fireplaces, chimineas, outdoor fire pits and similar outdoor fires is not allowed.
  • Off-Highway Vehicles (OHVs) being used in Area A is not allowed.

PM-10 or PM-2.5 Health Watch

  • Woodburning in residential fireplaces, chimineas, outdoor fire pits and similar outdoor fires is not allowed.

Ozone Health Watch

  • There are currently no restrictions for Ozone Health Watches.

To learn more, visit cleanairmakemore.com/.

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