CR3 News Magazine 2022 VOL 4: SEPTEMBER -- RADON AND SCHOOLS 点击阅读
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CR3 News Magazine

2022 VOL 4: SEPTEMBER -- RADON AND SCHOOLS

出版日期 / “社会焦点” / 语言—English / 80页
"EPA's national survey of schools produced some alarming results about concentrations in our children's classrooms. Public awareness must be raised about the hazards of radon to hasten efforts to reduce the danger. All schools must be tested to determine if there is a problem, and schools must inform parents of the results. We cannot ignore this problem." ... Kathryn Whitfill, National PTA President. 更多
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