PM-10 High Pollution Advisory
This HPA includes the following restrictions:
- Contractors cannot use leaf blowers on governmental properties on HPA days.
- Open burning activity is restricted in Maricopa County. This includes individuals and businesses which have burn permits for open burning.
- Off-highway vehicles are prohibited from being used during a PM-10 HPA.
- Eliminate fireplace and wood stove use.
- Drive as little as possible: car pool, use public transit or telecommute. For information on transportation alternatives, visit Valley Metro: www.valleymetro.org.
- Recreational off-highway vehicle (OHV) use is prohibited during the advisory period.
- The use of leaf blowers on governmental properties is prohibited during the advisory period.
- Avoid activities that generate dust, such as driving on dirt roads.
- Stabilize loose soils.
Due to the expected high winds, businesses conducting dust-generating operations need to be vigilant of their dust control measures. Workers may need to cease operating, after stabilizing disturbed areas, if water application and other dust control measures prove ineffective.
Maricopa County Air Quality Department inspectors will be conducting surveillance of fugitive dust sources in the county on days that are deemed high risk for particulate matter. Sources observed violating the particulate matter standards will be issued Notices of Violation.
Due to unhealthy levels of particulate matter, Trip Coordinators are encouraged to email employees and activate your HPA plans. The Maricopa County Air Quality Department encourages the use of alternative modes of transportation, especially when pollution levels are expected to be on the rise.
Remind employees that they are encouraged to make more clean air. By taking small, simple steps every day, we can all make a difference. Additional tips on how to reduce air pollution can be found at www.CleanAirMakeMore.com.
PM-10 stands for particulate matter measuring 10 microns or less. State and county agencies measure PM-10 and PM-2.5 which are extremely small solid particles and liquid droplets found circulating in the air. PM, or particulate matter, comes from either combustion (cars, industry, woodburning) or dust stirred up into the air. High levels of PM are typically created when the air is especially stagnant.
PM-2.5 stands for particulate matter measuring 2.5 microns or less. State and county agencies measure PM-10 and PM-2.5 which are extremely small solid particles and liquid droplets found circulating in the air. PM, or particulate matter, comes from either combustion (cars, industry, woodburning) or dust stirred up into the air. High levels of PM are typically created when the air is especially stagnant.
"High Pollution Advisory" or "HPA" means the highest concentration of pollution may exceed the federal health standard. Active children, adults and people with lung disease such as asthma should reduce prolonged or heavy outdoor exertion. Maricopa County employers enlisted in the Trip Reduction Program are asked to activate their HPA plans on high pollution advisory days.
"Health Watch" means the highest concentration of pollution may approach the federal health standard. Unusually sensitive people should consider reducing prolonged or heavy outdoor exertion during a health watch.
The Clean Air Make More App provides you with real-time air quality information right on your smartphone or tablet.
Get real-time information about air quality in Maricopa County along with alerts about High Pollution Advisories, Health Watches and restrictions for activities such as woodburning, leaf blowing and off-highway vehicle use.
Visit CleanAirMakeMore.com today and get the Clean Air Make More App!
Maricopa County also offers text alerts on days when the concentrations of particulate matter (PM) and ozone pollution are expected to reach or exceed unhealthy levels.
This service is provided to you at no charge by Maricopa County. You can view or update your subscriptions, password or e-mail address at any time on your User Profile Page.