title: Bioaccumulation of zinc, lead, copper, and cadmium from contaminated sediments by native plant species and Acrida cinerea in South China.
abstract: This research was conducted to search and identify spontaneously growing heavy metal-tolerant plant species that are potentially useful for phytoremediation in contaminated sediment. Five sites were selected for collection of plants growing on polluted shore (river bank) sediment of the Xiang River, China. The concentrations of Zn, Pb, Cu and Cd in plants, sediments, and grasshoppers were determined using flame atomic absorption spectrophotometer (AAS700, Perkin-Elmer, USA). Considering translocation factor and bioaccumulation factor, Rumex crispus (Polygonaceae), Rumex dentatus (Polygonaceae), and Lagopsis supina (Labiatae) could be potentially useful for phytostabilization of metals. R. crispus can be considered potentially useful for phytoextraction of Cd. In light of the biomagnification factors, grasshoppers are deconcentrators for Pb and Cd, microconcentrators for Zn and macroconcentrators for Cu to the plants, respectively. To the best of our knowledge, the present study is the first report on Zn, Pb, Cu and Cd accumulation in R. crispus and L. supina, providing a pioneer contribution to the very small volume of data available on the potential use of native plant species from contaminated sediments in phytostabilization and phytoremediation technologies.
authors.affiliation: College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China, zhangchang@hnu.edu.cn.
authors.forename: Chang
authors.initials: C
authors.lastname: Zhang
authors.forename: Na
authors.initials: N
authors.lastname: Song
authors.forename: Guang-Ming
authors.initials: GM
authors.lastname: Zeng
authors.forename: Min
authors.initials: M
authors.lastname: Jiang
authors.forename: Jia-Chao
authors.initials: JC
authors.lastname: Zhang
authors.forename: Xin-Jiang
authors.initials: XJ
authors.lastname: Hu
authors.forename: An-Wei
authors.initials: AW
authors.lastname: Chen
authors.forename: Jia-Mei
authors.initials: JM
authors.lastname: Zhen
mesh_terms: D000818:Animals; D001673:Biodegradation, Environmental; D002104:Cadmium / Q000032:analysis; D002681:China; D003300:Copper / Q000032:analysis; D004784:Environmental Monitoring; D004785:Environmental Pollutants / Q000032:analysis*; D019015:Geologic Sediments / Q000737:chemistry*; D006110:Grasshoppers / Q000737:chemistry; D007854:Lead / Q000032:analysis; D019216:Metals, Heavy / Q000032:analysis*; D010944:Plants / Q000737:chemistry*; D015032:Zinc / Q000032:analysis
chemical_list: D004785:Environmental Pollutants; D019216:Metals, Heavy; D002104:Cadmium; D007854:Lead; D003300:Copper; D015032:Zinc