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PLOS ONE:上海在校儿童究竟暴露于多高的PM2.5?

2018-04-04 海北 MedSci原创

上海市疾病预防控制中心/上海市预防医学研究所的研究人员进行了一项研究,目的是对儿童PM2.5(空气动力学直径小于2.5μm的颗粒物质)的暴露进行评估。

上海市疾病预防控制中心/上海市预防医学研究所的研究人员进行了一项研究,目的是对儿童PM2.5(空气动力学直径小于2.5μm的颗粒物质)的暴露进行评估。

PM2.5实时暴露测量方面,研究人员收集了57名在上海两所学校的8-12岁的儿童9.64±0.93岁)的数据。同时,问卷调查和时间活动日记被用来估计家庭环境和每日时间活动模式,以估计这些儿童PM2.5的暴露剂量。主成分回归分析被用来探讨潜在PM2.5暴露源的影响。

所有的人体暴露量中位数和微环境PM2.5浓度都大大超过了中国,美国和世界卫生组织(WHO)每日24小时PM2.5环境空气质量标准。所有学生的Etotal中位数(不同微环境和分数时间的PM2.5暴露水平之和)为3014.13μg.h/ m3。所有学生的时间加权平均(TWA)暴露浓度为137.01微克/立方米。在校园期间,TWA中值暴露水平(135.81μg/ m3)明显高于校外期间(115.50μg/ m3P = 0.013 <0.05)。除环境空气污染和气象条件外,教室层高和学校交通方式与儿童日常PM2.5的暴露也显着相关。

因此,该研究显示,在2013年冬季,两所入选学校的儿童在上海暴露于高浓度的PM2.5。他们的个人PM2.5暴露主要与周围的空气条件,教室层高以及儿童的上学交通方式有关。


原始出处:

Zhang L et al. Personal exposure measurements of school-children to fine particulate matter (PM2.5) in winter of 2013, Shanghai, China. PLOS ONE, 2018; DOI: 10.1371/journal.pone.0193586


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    2018-04-08 秀红

    学习了

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    2018-04-07 1de5757am08(暂无匿称)

    学习了

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    2018-04-06 121832a9m88暂无昵称

    学习了

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=1790136, encodeId=ba2e1e90136ea, content=<a href='/topic/show?id=6e4814388e2' target=_blank style='color:#2F92EE;'>#Plos one#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14388, encryptionId=6e4814388e2, topicName=Plos one)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=fda6311, createdName=119337457, createdTime=Fri Mar 15 20:54:00 CST 2019, time=2019-03-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=303922, encodeId=d84d3039223a, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=104, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/01/15/8213228fe923915543544ad3da7e1c64.jpg, createdBy=6bd82014262, createdName=秀红, createdTime=Sun Apr 08 14:25:03 CST 2018, time=2018-04-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=303476, encodeId=2efe3034e6af, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=87, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2be91690247, createdName=1de5757am08(暂无匿称), createdTime=Sat Apr 07 07:49:44 CST 2018, time=2018-04-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1264991, encodeId=4bff12649919e, content=<a href='/topic/show?id=9574144034a' target=_blank style='color:#2F92EE;'>#PM2.5#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14403, encryptionId=9574144034a, topicName=PM2.5)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=87f580, createdName=yilong5287542, createdTime=Fri Apr 06 06:54:00 CST 2018, time=2018-04-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=303162, encodeId=4a7c303162f9, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a8f22260741, createdName=121832a9m88暂无昵称, createdTime=Fri Apr 06 06:20:44 CST 2018, time=2018-04-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=303161, encodeId=dc21303161d6, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=82, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a8f22260741, createdName=121832a9m88暂无昵称, createdTime=Fri Apr 06 06:19:33 CST 2018, time=2018-04-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=302725, encodeId=68a3302e259e, content=学习了.长知识, beContent=null, objectType=article, channel=null, level=null, likeNumber=88, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20220115/46bcf39c32de4aa6b45c5f9d66c8ee77/6cb4a20c55bb4b7691122f47747bfca2.jpg, createdBy=9dad1662329, createdName=1ddf0692m34(暂无匿称), createdTime=Wed Apr 04 17:54:38 CST 2018, time=2018-04-04, status=1, ipAttribution=)]
    2018-04-06 121832a9m88暂无昵称

    学习了

    0

  7. [GetPortalCommentsPageByObjectIdResponse(id=1790136, encodeId=ba2e1e90136ea, content=<a href='/topic/show?id=6e4814388e2' target=_blank style='color:#2F92EE;'>#Plos one#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14388, encryptionId=6e4814388e2, topicName=Plos one)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=fda6311, createdName=119337457, createdTime=Fri Mar 15 20:54:00 CST 2019, time=2019-03-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=303922, encodeId=d84d3039223a, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=104, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/01/15/8213228fe923915543544ad3da7e1c64.jpg, createdBy=6bd82014262, createdName=秀红, createdTime=Sun Apr 08 14:25:03 CST 2018, time=2018-04-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=303476, encodeId=2efe3034e6af, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=87, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2be91690247, createdName=1de5757am08(暂无匿称), createdTime=Sat Apr 07 07:49:44 CST 2018, time=2018-04-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1264991, encodeId=4bff12649919e, content=<a href='/topic/show?id=9574144034a' target=_blank style='color:#2F92EE;'>#PM2.5#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14403, encryptionId=9574144034a, topicName=PM2.5)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=87f580, createdName=yilong5287542, createdTime=Fri Apr 06 06:54:00 CST 2018, time=2018-04-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=303162, encodeId=4a7c303162f9, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a8f22260741, createdName=121832a9m88暂无昵称, createdTime=Fri Apr 06 06:20:44 CST 2018, time=2018-04-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=303161, encodeId=dc21303161d6, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=82, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a8f22260741, createdName=121832a9m88暂无昵称, createdTime=Fri Apr 06 06:19:33 CST 2018, time=2018-04-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=302725, encodeId=68a3302e259e, content=学习了.长知识, beContent=null, objectType=article, channel=null, level=null, likeNumber=88, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20220115/46bcf39c32de4aa6b45c5f9d66c8ee77/6cb4a20c55bb4b7691122f47747bfca2.jpg, createdBy=9dad1662329, createdName=1ddf0692m34(暂无匿称), createdTime=Wed Apr 04 17:54:38 CST 2018, time=2018-04-04, status=1, ipAttribution=)]
    2018-04-04 1ddf0692m34(暂无匿称)

    学习了.长知识

    0

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