1. College of Resources and Environment
2. University of Chinese Academy of Sciences
3. Beijing 100049
4. China
5. State Key Laboratory of Organic Geochemistry and Guangdong Key Laboratory of Environmental Protection and Resources Utilization
6. State Key Laboratory of Environmental Chemistry and Ecotoxicology
7. Graduate School of Life and Environmental Sciences
8. University of Tsukuba
9. Tsukuba
10. Japan