By Joe EdwardsShareNewsweek is a Trust Project memberThousands of people in Arizona face potentially unhealthy levels of air pollution early Friday, a live map from AirNow shows.
The map shows an area of fine particle (PM2.5) pollution in the "unhealthy" category covering a portion of Phoenix.
At these air pollution levels, the Environmental Protection Agency (EPA) recommends that sensitive groups avoid long or intense outdoor activities and consider rescheduling moving them indoors.
The EPA also advises that the remainder of the population reduces long or intense activities, and to take more breaks during outdoor activities.
This is a developing story. More to follow.
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