期刊论文

中文

环境科学研究

1001-6929

2011

24

5

475-481

10.13198/j.res.2011.05.3.weinn.008

国家自然科学基金项目（10775174）； 中国科学院知识创新工程重要方向项目（KJCX-3SYW-N3）； 上海自然科学基金项目（3109ZR1438200）； 上海市基础研究重点项目（Y031061031）；

本校为第一机构

对比研究了隧道和大气环境中不同粒径细颗粒物(切割粒径分别为0.03,0.06,0.108,0.17,0.26,0.40,0.65,1.0,1.6和2.5μm)中S,K,Ca,Ti,Mn,Fe,Zn,Pb,Al,Si,Cu和V等12种痕量元素的浓度.结果表明:隧道中不同粒径细颗粒物的数浓度和质量浓度在上下班高峰时段出现明显峰值,且隧道细颗粒物在 0.108 μm 粒径处的数浓度和在 2.5 μm 粒径处的质量浓度分别是大气环境对照值的 15.2和40.0 倍;在隧道传输过程中质量浓度增加的痕量元素有 Si,Ca,Fe,Al,Ti,Zn,Mn,Cu和V,减小的有 S,Pb,zn和K;地壳元素(Si,Ca,Fe,Al和Ti)的质量浓度总和占隧道细颗粒物中痕量元素质量浓度总和的 87%,表明土壤扬尘仍是隧道大气细颗粒...

The air quality and pollution characteristics inside tunnels have been receiving more and more attention.Mass concentrations of airborne fine particles with different sizes（cut-off diameter：0.03,0.06,0.108,0.17,0.26,0.40,0.65,1.0,1.6,and 2.5 μm） were compared between inside a tunnel and the ambient atmospheric environment.In addition,the mass concentrations of 12 trace elements（S,K,Ca,Ti,Mn,Fe,Zn,Pb,Al,Si,Cu,and V） in the fine particles were investigated.The results showed that both number and mass concentrations of fine particles with di...