1. School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730000, China
2. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
3. Jilin Petrochemical Company, Ltd, PetroChina, Jilin 132022, China
4. College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China