PM2.5 trends in China, 2013-2017: contributions from different components and emissions

Shixian Zhai1, Daniel Jacob1, Xuan Wang1, Zirui Liu2, Tianxue Wen2, Viral Shah1, Gan Luo3, Jonathan Moch1, Ke Li1, Shaojie Song1, Litao Wang4, Jun Tao5, Mengyao Qi4, Honghui Xu6, Ke Gui7, Qiang Zhang8, Tianliang Zhao9 and Hong Liao9, (1)Harvard University, Cambridge, MA, United States, (2)IAP, CAS, Beijing, China, (3)SUNY Albany, Albany, NY, United States, (4)Hebei University of Engineering, Handan, China, (5)South China Institute of Environmental Sciences, Guangzhou, China, (6)Institute of Meteorological Science of Zhejiang Province, Hangzhou, China, (7)Chinese Academy of Meteorological Sciences, Beijing, China, (8)Tsinghua University, Beijing, China, (9)Nanjing University of Information Science and Technology, Nanjing, China