1. School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China
2. School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an 710049, China
3. Shanxi Provincial Institute of Forensic Science for Public Security, Jinzhong 030601, China
4. Shanxi Diesel Engine Industry Co., Ltd., Datong 037036, China
5. Key Laboratory of Biodiversity and Environment on the Qinghai-Tibetan Plateau, (Tibet University & Wuhan University), Ministry of Education, School of Ecology and Environment, Tibet University, Lhasa 850000, China