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The top documents tagged [absences county enrollment]
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absences county enrollment
160-120 Days of poor AQ – 1558 Schools 91-105 Days of poor AQ – 343 Schools 76-90 Days of poor AQ – 3335 Schools 61-75 Days of poor AQ – 1888 Schools.
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SCHOOL ABSENCES: A CONSEQUENCE OF AIR POLLUTION IN CALIFORNIA?
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