1. State Key Laboratory of Environmental Chemistry and Ecotoxicology
2. Research Center for Eco-Environmental Sciences
3. Chinese Academy of Sciences
4. Beijing 100085
5. China
6. State Key Laboratory of Synchrotron Radiation
7. Institute of High Energy Physics
8. Beijing 100039
9. Shanghai Institute of Applied Physics
10. Shanghai
11. Agri-Environment Branch
12. Agri-Food and Biosciences Institute
13. Belfast BT9 5PX
14. UK