1. Key Laboratory of Waters Safety and Protection in the Pearl River Delta; Ministry of Education, and Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources; Guangzhou University; Guangzhou China
2. Department of Geosciences; National Taiwan University; Taipei Taiwan
3. School of Environmental Science and Engineering; Guangzhou University; Guangzhou China
4. Guangdong Provincial Academy of Environmental Science; Guangzhou China