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佳木斯市学校教室PM2.5连续监测及学生暴露水平评价

杨文静 樊琳 叶丹 王姣 张宇晶 闫旭 王宇 包名家 王林 王先良

杨文静, 樊琳, 叶丹, 王姣, 张宇晶, 闫旭, 王宇, 包名家, 王林, 王先良. 佳木斯市学校教室PM2.5连续监测及学生暴露水平评价[J]. 中国学校卫生, 2021, 42(9): 1306-1310. doi: 10.16835/j.cnki.1000-9817.2021.09.008
引用本文: 杨文静, 樊琳, 叶丹, 王姣, 张宇晶, 闫旭, 王宇, 包名家, 王林, 王先良. 佳木斯市学校教室PM2.5连续监测及学生暴露水平评价[J]. 中国学校卫生, 2021, 42(9): 1306-1310. doi: 10.16835/j.cnki.1000-9817.2021.09.008
YANG Wenjing, FAN Lin, YE Dan, WANG Jiao, ZHANG Yujing, YAN Xu, WANG Yu, BAO Mingjia, WANG Lin, WANG Xianliang. Continuous monitoring of fine particulate matter in school classrooms and assessment of students' exposure level[J]. CHINESE JOURNAL OF SCHOOL HEALTH, 2021, 42(9): 1306-1310. doi: 10.16835/j.cnki.1000-9817.2021.09.008
Citation: YANG Wenjing, FAN Lin, YE Dan, WANG Jiao, ZHANG Yujing, YAN Xu, WANG Yu, BAO Mingjia, WANG Lin, WANG Xianliang. Continuous monitoring of fine particulate matter in school classrooms and assessment of students' exposure level[J]. CHINESE JOURNAL OF SCHOOL HEALTH, 2021, 42(9): 1306-1310. doi: 10.16835/j.cnki.1000-9817.2021.09.008

佳木斯市学校教室PM2.5连续监测及学生暴露水平评价

doi: 10.16835/j.cnki.1000-9817.2021.09.008
基金项目: 

托幼机构和中小学室内空气质量标准研究项目 20181903

北京市自然科学基金项目 8182055

详细信息
    作者简介:

    杨文静(1984-), 女, 山西大同人, 硕士, 助理研究员, 主要研究方向为环境健康防护

    通讯作者:

    王先良, E-mail: wangxianliang@nieh.chinacdc.cn

  • 中图分类号: G 478 R 122 R 179

Continuous monitoring of fine particulate matter in school classrooms and assessment of students' exposure level

  • 摘要:   目的  了解学校室内PM2.5污染状况和学生暴露水平,为学生健康防护提供基础数据。  方法  通过在线环境监测仪对佳木斯8所中小学16间自然通风教室的PM2.5进行为期2个学期的连续监测,同时抓取室外PM2.5数据进行对比研究,对学生在校期间暴露量进行评价。  结果  春、秋两学期教室内PM2.5平均质量浓度分别为(26.93±24.7)和(31.85±30.37) μg/m3,教室内外PM2.5 I/O值分别为0.92和0.95,存在强相关性。两学期所有教室的全天PM2.5平均质量浓度为(28.93±26.85)μg/m3,略高于白天学生在校期间的(27.53±26.53)μg/m3,且工作日质量浓度高于周末。随着楼层升高,室内PM2.5质量浓度逐渐下降。学生在校期间的累积暴露量,春季学期为28.48 μg /m3,秋季学期为31.87 μg /m3  结论  教室内PM2.5随时间、水平空间与垂直空间的变化会有所不同,且室内PM2.5的污染程度极大依赖于室外污染源;春、秋两学期学生在校期间PM2.5暴露量有所差异。
  • 图  1  不同学校教室春季和秋季学期的白天(8 h) PM2.5平均质量浓度

    Figure  1.  Daytime (8 h) PM2.5 concentrations in different school classrooms in spring and autumn semester

    图  2  春季学期教室PM2.5日均质量浓度变化曲线

    Figure  2.  Variation curve of daily average concentration of PM2.5 in spring semester

    图  3  秋季学期教室PM2.5日均质量浓度变化曲线

    Figure  3.  Variation curve of daily average concentration of PM2.5 in autumn semester

    表  1  教室室内全天和白天PM2.5平均质量浓度比较/(x ±s,μg·m-3)

    Table  1.   Average concentration of PM2.5 in classrooms on weekday and weekend/(x ±s, μg·m-3)

    组别 春季 秋季 总体
    工作日 周末 全部 工作日 周末 全部
    全天 28.28±25.59 23.57±16.07 26.93±24.70 36.69±37.65 29.79±26.03 31.85±30.37 28.93±26.85
    白天 27.90±28.67 22.88±16.09 25.13±22.35 35.60±33.17 28.35±23.89 30.13±28.13 27.53±26.53
    Z 2.37 0.98 2.49 0.95 0.26 1.59 2.79
    P 0.02 0.33 0.01 0.34 0.79 0.11 0.01
    下载: 导出CSV

    表  2  不同学段学生春秋学期在校期间PM2.5累积暴露质量浓度比较(x ±s, μg/m3)

    Table  2.   PM2.5 comprehensive exposure concentration of students during the spring and autumn semester(x ±s, μg/m3)

    学段 春季 秋季 Z P
    初中 28.56±25.89 31.00±28.18 -3.63 < 0.01
    小学 28.39±35.73 32.74±31.27 -2.25 0.03
    合计 28.48±35.77 31.87±31.27 -2.93 < 0.01
    下载: 导出CSV
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出版历程
  • 收稿日期:  2021-01-04
  • 修回日期:  2021-02-14
  • 网络出版日期:  2021-09-24
  • 刊出日期:  2021-09-24

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