ORIGINAL RESEARCH
		
		 
	
	
	
		The Variations of Concentrations,
Profiles and Possible Sources of Metals
and Polycyclic Aromatic Hydrocarbons
in PM10 from Lanzhou, China
	
	
		Yunjiang Yu1,2, Qiong Wang2,3, Liangzhong Li1, Peng Sun4, Yanping Zhang2,
Haipeng Lin5, Jianhua Chen2, Bigui Lin1, Mingdeng Xiang1
		
			
			Pol. J. Environ. Stud. 2016;25(3):1323-1330