title: Risk determination method for accidental water basin contamination based on risk source coupling with sensitive targets.
abstract: Accidental water basin pollution seriously threatens human health and ecological security, but rapid, effective methods for evaluating this threat are lacking. This paper aims to develop a risk evaluation method for basin accidents by coupling the risk source with sensitive targets to evaluate the zone accident risk levels of basins and prevent the accidental environmental pollution of water. This method incorporates the interplay between risk sources and sensitive targets by evaluating the zone risk levels of water environments from different sources, effectiveness of the risk source control mechanisms, vulnerability of sensitive targets and spatial and temporal relationships between these sources and targets. Using the Three Gorges Reservoir region as an example, a risk system for water basin pollution incidents consisting of a risk indicator quantification system, a risk zoning method and a verification method for the zoning results is developed and implemented. The results were verified in a field investigation, which showed that the risk zoning model provides rapid, effective and reliable zoning results. This research method could serve as a theoretical reference and technological support for evaluating water basin accident risks. Furthermore, the results are useful for evaluating and protecting the aquatic environments in the Three Gorges Reservoir region.
authors.affiliation: a Ministry of Education , Key Laboratory of Eco-environments in Three Gorges Reservoir Region , Chongqing 400715 , People's Republic of China.|b Key Laboratory of Plant Ecology and Resources of the Three Gorges Reservoir Area , Chongqing 400715 , People's Republic of China.|c College of Life Science of Southwest University , Chongqing 400715 , People's Republic of China.
authors.forename: Zongfeng
authors.initials: Z
authors.lastname: Li
authors.affiliation: a Ministry of Education , Key Laboratory of Eco-environments in Three Gorges Reservoir Region , Chongqing 400715 , People's Republic of China.|b Key Laboratory of Plant Ecology and Resources of the Three Gorges Reservoir Area , Chongqing 400715 , People's Republic of China.|c College of Life Science of Southwest University , Chongqing 400715 , People's Republic of China.
authors.forename: Bo
authors.initials: B
authors.lastname: Zeng
authors.affiliation: a Ministry of Education , Key Laboratory of Eco-environments in Three Gorges Reservoir Region , Chongqing 400715 , People's Republic of China.|d College of Geographical Science of Southwest University , Chongqing 400715 , People's Republic of China.
authors.forename: Tinggang
authors.initials: T
authors.lastname: Zhou
authors.affiliation: a Ministry of Education , Key Laboratory of Eco-environments in Three Gorges Reservoir Region , Chongqing 400715 , People's Republic of China.|d College of Geographical Science of Southwest University , Chongqing 400715 , People's Republic of China.
authors.forename: Guowei
authors.initials: G
authors.lastname: Li
authors.affiliation: a Ministry of Education , Key Laboratory of Eco-environments in Three Gorges Reservoir Region , Chongqing 400715 , People's Republic of China.|d College of Geographical Science of Southwest University , Chongqing 400715 , People's Republic of China.
authors.forename: Xiaobo
authors.initials: X
authors.lastname: Zhu
mesh_terms: D002681:China; D004784:Environmental Monitoring / Q000379:methods*; D005618:Fresh Water / Q000032:analysis*; D008962:Models, Theoretical; D018570:Risk Assessment / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D014874:Water Pollutants, Chemical
keywords: Pollution; aquatic environment; environment risk; risk control; risk evaluation