title: Study of heavy metal concentrations in wild edible mushrooms in Yunnan Province, China.
abstract: Contamination with heavy metals in several species of edible mushrooms from the Yunnan Province in China was determined. Samples were collected from 16 locations in the Yunnan Province, and the contamination levels of Mn, Fe, Cu, Zn, As, Cd, and Pb were analyzed. The results demonstrated that the concentrations of essential elements (Mn, Fe, Cu, and Zn) in the mushrooms were at typical levels. The concentrations of potentially toxic metals (As, Pb and Cd) were higher than the national standard values of China (1.0 mg/kg for As, 0.2 mg/kg for Cd, and 2.0 mg/kg for Pb) in most cases. Bio-concentration factors suggested that it was easier for As and Cd to be accumulated in mushrooms than Pb, and a Health Risk Index assessment also suggested that As and Cd are greater risks to health than Pb. In conclusion, heavy metal pollution in wild edible mushrooms is a serious problem in the Yunnan Province. Among the toxic metals, As and Cd in the edible mushrooms in the area are the main sources of risk, as they may cause severe health problems. The local government needs to take measures in the form of concrete policies to protect the wild edible mushroom resources in the Yunnan Province.
authors.affiliation: School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing 100081, China.
authors.forename: Borui
authors.initials: B
authors.lastname: Liu
authors.affiliation: School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing 100081, China. Electronic address: huangqing@bit.edu.cn.
authors.forename: Qing
authors.initials: Q
authors.lastname: Huang
authors.affiliation: School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing 100081, China.
authors.forename: Huajie
authors.initials: H
authors.lastname: Cai
authors.affiliation: Kunming Edible Fungi Institute of All China Federation of Supply and Marketing Cooperatives, Kunming 650223, China.
authors.forename: Xiang
authors.initials: X
authors.lastname: Guo
authors.affiliation: Kunming Edible Fungi Institute of All China Federation of Supply and Marketing Cooperatives, Kunming 650223, China.
authors.forename: Tingting
authors.initials: T
authors.lastname: Wang
authors.affiliation: Kunming Edible Fungi Institute of All China Federation of Supply and Marketing Cooperatives, Kunming 650223, China.
authors.forename: Mingying
authors.initials: M
authors.lastname: Gui
mesh_terms: D000363:Agaricales / Q000737:chemistry*; D001151:Arsenic / Q000032:analysis; D002104:Cadmium / Q000032:analysis; D002681:China; D004784:Environmental Monitoring / Q000379:methods; D005506:Food Contamination / Q000032:analysis*; D007854:Lead / Q000032:analysis; D019216:Metals, Heavy / Q000032:analysis*; D018570:Risk Assessment; D012987:Soil / Q000737:chemistry
chemical_list: D019216:Metals, Heavy; D012987:Soil; D002104:Cadmium; D007854:Lead; D001151:Arsenic
keywords: Bioconcentration; Edible mushroom; Health risk assessment; Heavy metal