title: Metal Distribution and Contamination Assessment in Drainage Ditch Water in the Main Rice/Vegetable Area of Sichuan Hilly Basin.
abstract: In order to assess the impact of four land use changes on metal concentrations in the hilly Sichuan Basin of China, 71 surface water samples were collected in July and November 2014. Samples from residential ditch water were found to have higher metal concentrations than those in other types of ditches, while the lowest occurred in barren land ditch water. However, the selected metals were below the Chinese surface water quality standards and WHO (2011). The pollution index of four determined land use types was also below the critical pollution index, suggesting there were low levels of pollution in Sichuan Basin. Arsenic was the most important pollutant of concern. Results indicate steps should be taken to control and reduce the risk of metals released from residential ditch water.
authors.affiliation: Key Laboratory of Mountain Surface Processes and Ecological Regulation, Chinese Academy of Sciences, Chengdu, 610041, People's Republic of China.|Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, #0.9, Block 4, Renminnanlu Road, Chengdu, 610041, People's Republic of China.|University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China.|Department of Natural Resources and Environmental Management, University of Lubumbashi, PO Box 1825, Lubumbashi, Democratic Republic of Congo.
authors.forename: Mathieu Nsenga
authors.initials: MN
authors.lastname: Kumwimba
authors.affiliation: Key Laboratory of Mountain Surface Processes and Ecological Regulation, Chinese Academy of Sciences, Chengdu, 610041, People's Republic of China. bzhu@imde.ac.cn.|Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, #0.9, Block 4, Renminnanlu Road, Chengdu, 610041, People's Republic of China. bzhu@imde.ac.cn.
authors.forename: Bo
authors.initials: B
authors.lastname: Zhu
authors.affiliation: Key Laboratory of Mountain Surface Processes and Ecological Regulation, Chinese Academy of Sciences, Chengdu, 610041, People's Republic of China. wangt@imde.ac.cn.|Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, #0.9, Block 4, Renminnanlu Road, Chengdu, 610041, People's Republic of China. wangt@imde.ac.cn.
authors.forename: Tao
authors.initials: T
authors.lastname: Wang
authors.affiliation: Key Laboratory of Mountain Surface Processes and Ecological Regulation, Chinese Academy of Sciences, Chengdu, 610041, People's Republic of China.|Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, #0.9, Block 4, Renminnanlu Road, Chengdu, 610041, People's Republic of China.
authors.forename: Zhao
authors.initials: Z
authors.lastname: Yuan
authors.affiliation: School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, People's Republic of China.
authors.forename: Diana Kavidia
authors.initials: DK
authors.lastname: Muyembe
mesh_terms: D000383:Agriculture; D002681:China; D004784:Environmental Monitoring; D019216:Metals, Heavy / Q000032:analysis*; D012275:Oryza; D014675:Vegetables; D014867:Water / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis*; D060753:Water Quality
chemical_list: D019216:Metals, Heavy; D014874:Water Pollutants, Chemical; D014867:Water
keywords: Channel; Land use; Pollution evaluation indices; Spatial distribution