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How many days will poor air quality affect all students?

April 26, 2017affect air quality days poor students

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How many days will poor air quality affect all students?

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Keeping all students indoors does not happen very often. For example, during the winter of 2006-07, there were only 4 days at Hawthorne Elementary in Salt Lake City in which PM2.5 levels were above 90 ug/m3. In Ogden there were only 2 days in which PM2.5 levels were above 90 ug/m3.