1. Fankou Lead-Zinc Mine, Shenzhen Zhongjin Lingnan Non-Ferrous Metal Company Limited, Shaoguan 512000, China
2. School of Environment, South China Normal University, University Town, Guangzhou 510006, China
3. Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China