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首页> 美国卫生研究院文献>International Journal of Environmental Research and Public Health >Associations Between School Characteristics and Classroom Radon Concentrations in Utah’s Public Schools: A Project Completed by University Environmental Health Students
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Associations Between School Characteristics and Classroom Radon Concentrations in Utah’s Public Schools: A Project Completed by University Environmental Health Students

机译：犹他州公立学校学校特征与课堂氡浓度的协会：大学环境卫生学生完成的项目

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Radon (²²²Rn), a radioactive gas, is the second leading cause of lung cancer deaths in the U.S. Classroom radon concentrations in public schools in our target area had never been measured or had not been measured in many years. We had university students, primarily enrolled in environmental health courses, measure radon concentrations in 2289 classrooms in 66 of Utah’s public schools and identify school characteristics associated with classroom radon concentrations. The geometric mean (GM) classroom radon concentration was 31.39 (95% confidence interval (CI): 27.16, 36.28) Bq/m (GM: 0.85; 95% CI: 0.72, 0.98 pCi/L). Thirty-seven (2%) classrooms in 13 (20%) schools had radon concentrations at or above the U.S. Environmental Protection Agency’s (EPA) recommended action level of 148 Bq/m (4.0 pCi/L). Number of classrooms had a u-shaped association with classroom radon concentrations. The year the heating, ventilation, and air conditioning (HVAC) system was installed was inversely associated with having classroom radon concentrations at or above the EPA’s recommended action level. Number of classrooms and number of students had u-shaped associations with having classroom radon concentrations at or above the EPA’s recommended action level. Classroom radon concentrations decreased when schools’ HVAC systems were on. Replacing HVAC systems and turning/keeping them on may be effective radon mitigation strategies to prevent radon-associated lung cancer, especially for small and large schools.
机译：氡（²²²rn）是放射性气体，是美国肺癌死亡的第二个主要原因，在我们的目标地区的公共学校中的课堂氡浓度从未被衡量或未在多年中衡量。我们有大学生，主要参与环境健康课程，测量犹他州公立学校66名课堂上的2289年课堂氡浓度，并确定与课堂氡浓度相关的学校特征。几何平均值（GM）教室氡浓度为31.39（95％置信区间（CI）：27.16,36.28）Bq / M（GM：0.85; 95％CI：0.72,0.98 PCI / L）。 13（20％）学校的三十七（2％）教室在美国的氡浓度或以上的美国环境保护局（EPA）建议的行动水平为148 bq / m（4.0 pci / l）。教室的数量与课堂氡浓度有一个U形结合。安装了加热，通风和空调（HVAC）系统与在EPA推荐的行动水平或高于EPA的课堂氡浓度与课堂氡浓度相反。教室数量和学生人数有U形关联，在EPA推荐的行动水平或高于课堂氡浓度。学校的HVAC系统开启时，课堂氡浓度降低。更换HVAC系统和转动/保持其可能是有效的氡气缓解策略，以防止氡患者肺癌，特别是对于小型和大学。

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