High Lead Levels Discovered In Chicago School's Drinking Fountains
School and city officials faced angry parents after high levels of lead were detected in 3 drinking fountains. Officials say they'll test for lead contamination at all of the city's public schools.
Đọc tiếp trên NPR
At June 1, 2016 at 04:07PM
Categoty Education
Thứ Tư, 1 tháng 6, 2016
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