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Arizona ozone levels rise as feds tighten air quality restrictions

Jenna Miller//November 10, 2017//[read_meter]

Arizona ozone levels rise as feds tighten air quality restrictions

Jenna Miller//November 10, 2017//[read_meter]

This Nov. 9, 2017, photo shows that even in the middle of the day, the I-10 often has heavy traffic. Vehicle emissions are a main contributor...

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