title: [Analysis of particulate pollution characteristics and its causes in Lanzhou, Northwest China].
authors.affiliation: Laboratory for Climate, Environment & Disasters of Western China, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China. yyu@lzb.ac.cn
authors.forename: Ye
authors.initials: Y
authors.lastname: Yu
authors.forename: Dun-Sheng
authors.initials: DS
authors.lastname: Xia
authors.forename: Lei-Hua
authors.initials: LH
authors.lastname: Chen
authors.forename: Na
authors.initials: N
authors.lastname: Liu
authors.forename: Jin-Bei
authors.initials: JB
authors.lastname: Chen
authors.forename: Yan-Hong
authors.initials: YH
authors.lastname: Gao