Estimating PM2.5 concentrations in China from 1957 to 2014 using meteorological visibility data

Zongwei Ma1, Miaomiao Liu1, Ting Wen2 and Jun Bi1, (1)Nanjing University, State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing, China, (2)Hohai University, Nanjing, China