文献类型：期刊文献

英文题名：Characterization of Particulate Matter, Ions and OC/EC in a Museum in Shanghai, China

作者：Xiu, Guangli[1];Wu, Xin[1];Wang, Lina[1];Chen, Yuanxiang[1];Yu, Ying[1];Xu, Fangyuan[2];Wu, Laiming[2]

机构：[1]E China Univ Sci & Technol, Sch Resources & Environm Engn, State Environm Protect Key Lab Risk Assessment &, Shanghai 200237, Peoples R China;[2]Shanghai Museum, Key Sci Res Base Museum Environm, State Adm Cultural Heritage, Shanghai, Peoples R China

年份：2015

卷号：15

期号：4

起止页码：1240

外文期刊名：AEROSOL AND AIR QUALITY RESEARCH

收录：;EI(收录号：20153101104268);WOS:【SCI-EXPANDED(收录号:WOS:000358999400009)】；

基金：This study was sponsored by the grants of the national science and technology support program2014BAC16B04, 13PJD013 of Shanghai Pujiang Plan, B200-2-13043 of Shanghai Natural Science fund, Innovation Program of Shanghai Municipal Education Commission 12ZZ054, Government of Bilateral Cooperation projects between China and Serbia, WB1113005 and WB1314017 from East China University of Science and Technology. The author would like to thank our colleague and staff from the museum for their contribution to this work.

语种：英文

外文关键词：Museum; Particulate matter; Number concentration; Water-soluble ions; Size distribution

摘要：The size-fractionated particle number concentrations were monitored continuously in the different exhibition halls of an enclosed museum, in Shanghai. Particles in different size bins were collected to investigate the main chemical compositions. Results indicated that the mass concentrations of coarse particles, fine particles and ultrafine particles were in the range of 20.50-24.38 mu g/m(3), 23.39-24.08 mu g/m(3) and 16.02-17.48 mu g/m(3), respectively. In addition, the activities of cleaning and walking can greatly elevate the number concentration of coarse particles by a factor of about 8-172 times. The decay rates of size-fractionated particle increased with the enlarging particle diameter, ranging from 2 x 10(-5) to 8 x 10(-4) s(-1). The mass concentration of SO42-, NO3-, NH4+ peaked within the particle size range of 0.32-0.56 mu m. The ratios of [NO3-]/[SO42-] on the National Day and working day were 0.08 and 0.12, respectively. Comparatively, the peak concentrations of Na+, Cl-, K+, Mg2+ and Ca2+ occurred in the various size ranges. Total organic acids distributed uniformly, the acetate ion mass concentration was 1.238 mu g/m(3), which was higher than both formate ion and oxalate ion concentrations. The concentrations of OC and EC showed similar trends on both the National Day and working day, and greater OC/EC ratios were found in the particles within the size range less than 0.1 mu m and larger than 1 mu m.