[1] U.S Environmental Protection Agency Office of Research and Development. Clean Air Research Multi-Year Plan 2008-2012 [M]. United States: Research Triangle Park, 2008.
[2] Giorgi F, Bi X, Qian Y. Direct radiative forcing and regional climatic effects of anthropogenic aerosols over east asia: A regional coupled climate-chemistry/aerosol model study [J]. Journal of Geophysical Research , 2002, 107 (1320): AAC7/1-AAC7/18.
[5] Lv Wenying, Xu Haijuan, Wang Xinming. Major inorganic water-soluble ions in fine particles collected in autumn in urban guangzhou [J]. Environmental Science and Technology , 2010, 33(1): 98-101.
[7] Tsai J, Owega S, Evans G, et al . Chemical composition and source apportionment of Toronto summertime urban fine aerosol [J]. Journal of Radioanalytical and Nuclear Chemistry , 2004, 259(1): 193-197.
[8] Chen Y J, Zheng M, Edgerton E S, et al . PM2.5 source apportionment in the southeastern U.S.: Spatial and seasonal variations during 2001-2005 [J]. Journal of Geophysical Research , 2012, 117: D08304.
[13] Hu Min, He Liangyan, Zhang Yuanhang, et al . Seasonal variation of ionic species in fine particles at Qingdao, China [J]. Atmospheric Environment , 2002, 36: 5853-5859.