Analysis on the Sources and Characters of Particles in Chengdu
WANG Shu-Lan~1, CHAI Fa-He~2, ZHANG Yuan-Hang~1, ZhOU Lai-Dong~3, WANG Qin-Ling~3 (1.College of environmental sciences, Peking University, Beijing 100871;2. Environmental Institute of China, Beijing 100012;3.Chengdu academy of environmental protection, Chengdu, Sichuan 610072)
The serious air fine particles pollution and obvious secondary pollutant characteristics in Chengdu were determined, through synchronously continuous sampling and monitoring activities for three types of particles defined by size in summer and winter respectively. Through qualitative analysis such as multiple regression analysis, enrichment factor analysis, and chemical constituent factor analysis for chemical composition and source of pollutants, it was demonstrated that the inhalational particles mainly originated from the combustion of fossil material and oil, biogenic material, cooking industry emission, building industry emission or metallurgic emission, etc .