Source-receptor relationships for PM2.5 during typical pollution episodes in the Pearl River Delta city cluster, China

Qi Fan1, Yiming Liu2, Yingying Hong3, Xuemei Wang4, Pakwai Chan5, Xiaoyang Chen2, Anqi Lai6, Mingjie Wang7 and Xunlai Chen7, (1)Sun Yat-Sen University, Department of Environmental Science, School Of Environmental Science and Engineering, Guangzhou, China, (2)Sun Yat-sen University, Guangzhou, China, (3)Guangdong Ecological Meteorology Center, Guangzhou, China, (4)Sun Yat-Sen University, School of Atmospheric Sciences, Guangzhou, China, (5)Hong Kong Observatory, Guangzhou, China, (6)Sun Yat-sen University, Guanghzou, China, (7)Shenzhen Key Laboratory of Severe Weather in South China, Shenzhen, China