title: Trace metals in the surface sediments of the eastern continental shelf of Hainan Island: Sources and contamination.
abstract: Major (Al) and trace metal (Cu, Pb, Zn, Cr, Ni, Cd, and As) concentrations in 29 surface sediment samples from the eastern continental shelf of Hainan Island were evaluated to determine the level of contamination. A multivariate analysis indicated that the sources of Cd, As, and Pb were primarily anthropogenic, whereas the sources of Cu, Zn, Cr, and Ni were primarily natural and/or partially anthropogenic. Enrichment factor (EF) and geoaccumulation index (Igeo) values were calculated to assess the anthropogenic contamination in the region. Both the EF and Igeo values indicated relatively elevated Cd and As concentrations. This study provides a useful aid for sustainable marine management in the region.
authors.affiliation: School of Geosciences, China University of Petroleum, Qingdao 266580, China. Electronic address: xufangjiangg@163.com.
authors.forename: Fangjian
authors.initials: F
authors.lastname: Xu
authors.affiliation: School of Geosciences, China University of Petroleum, Qingdao 266580, China.
authors.forename: Xu
authors.initials: X
authors.lastname: Tian
authors.affiliation: Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China.
authors.forename: Xuebo
authors.initials: X
authors.lastname: Yin
authors.affiliation: School of Geosciences, China University of Petroleum, Qingdao 266580, China.
authors.forename: Huimei
authors.initials: H
authors.lastname: Yan
authors.affiliation: Exploration Company, SINOPEC, Chengdu 610041, China.
authors.forename: Feng
authors.initials: F
authors.lastname: Yin
authors.affiliation: School of Geosciences, China University of Petroleum, Qingdao 266580, China.
authors.forename: Zhaoqing
authors.initials: Z
authors.lastname: Liu
mesh_terms: D003247:Conservation of Natural Resources; D004784:Environmental Monitoring; D019015:Geologic Sediments / Q000737:chemistry*; D062312:Islands; D019216:Metals, Heavy / Q000032:analysis* / Q000737:chemistry; D015999:Multivariate Analysis; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000737:chemistry
chemical_list: D019216:Metals, Heavy; D014874:Water Pollutants, Chemical
keywords: Continental shelf; Hainan Island; Sediment contamination; Surface sediments; Trace metals