文献类型：期刊文献

中文题名：封闭式博物馆室内空气颗粒物离子成分特征

英文题名：Ionic Composition of Particulate Matters within an Enclosed Museum

作者：陈远翔[1];修光利[1];于颖[1];徐方圆[2];吴来明[2];施超欧[3];解玉林[2];张大年[1];王烁[4]

机构：[1]华东理工大学国家环境保护化工过程环境风险评价与控制重点实验室,上海200237;[2]馆藏文物保护环境国家文物局重点科研基地上海博物馆,上海200050;[3]华东理工大学化学与分子工程学院,上海200237;[4]华东理工大学中德工学院,上海200237

年份：2013

卷号：36

期号：5

起止页码：134

中文期刊名：环境科学与技术

外文期刊名：Environmental Science & Technology

收录：CSTPCD;;北大核心:【北大核心2011】；CSCD:【CSCD_E2013_2014】；

基金："十一五"国家科技支撑计划课题资助(2010BAK67B15);馆藏文物保存环境国家文物局重点科研基地开放基金资助;国家文物局文物保护科学和技术研究课题(20080215);"中央高校基本科研业务费专项资金资助"(WB1113005)

语种：中文

中文关键词：博物馆;颗粒物;数浓度;水溶性离子;粒径分布

外文关键词：museum; particle matter; number concentration; water-soluble ions; size distribution

摘要：采用气体悬浮物粒子监测仪和NanoMoudi-Ⅱ125A型分级采样器对某封闭式博物馆进行颗粒物数浓度监测和颗粒物采样,测定了不同粒径段颗粒物中的主要离子组分。结果表明,监测期间粗颗粒物（粒径≥2.5μm）、细颗粒物（粒径在0.1~2.5μm之间）和超细颗粒物（粒径≤0.1μm）质量浓度分别为20.50~24.38μg/m3、23.39~24.08μg/m3和16.02~17.48μg/m3。颗粒物数浓度集中在粒径≤0.3μm范围,PM1数浓度占PM10数浓度的97%以上,游客扰动和清洁活动使粗颗粒物数浓度增加了8~172倍。SO42-、NO3-、NH4＋峰值出现在0.32~0.56μm粒径段,Na＋、Cl-分布较平均,K＋峰值出现在0.32~0.56μm和3.2~5.6μm粒径段,Mg2＋的峰值出现在3.2~5.6μm粒径段,Ca2＋峰值出现在1.8~3.2μm粒径段;总有机酸根离子无明显峰值;乙酸根离子浓度为1.238μg/m3,高于甲酸根和乙二酸根。颗粒物的阳/阴离子比均值为2.83,说明阴离子测定可能有缺失,如碳酸盐等。颗粒物中水溶性离子浓度水平和粒径分布受游客影响不明显,受室外空气输送的影响较大。
To determine the main ionic composition in different exhibition halls of an enclosed museum,studies were conducted with respect to size-fractionated particle number concentration（PNC） and size-fractionated suspended particles.The mass concentrations of coarse,fine and ultra-fine particles were determined,indicating nearly 80% particles were PM0.3（diameter0.3 μm）.The results showed that activities such as visitors＇ walking and room cleanup could greatly increase PNC of coarse particles by 8 to 172 times;ions such as anions SO42-,NO3-and NH4＋,and cations Ca2＋ and Mg2＋ were measured in terms of their size distribution ranges;the average ratio of cation/anion（C/A） of the particles was 2.83,which might suggest the lack of determination of carbonate.It was also found that water-soluble ions in particles were unlikely affected by the disturbance such as walking of visitors in terms of concentration and size distribution,but mostly influenced by the outdoor inflow air.