Heavy metal contamination in soils and food crops around Dabaoshan mine in Guangdong, China: implication for human health

被引:253
作者
Zhuang, P. [1 ]
Zou, B. [1 ]
Li, N. Y. [1 ]
Li, Z. A. [1 ]
机构
[1] Chinese Acad Sci, S China Bot Garden, Inst Ecol, Guangzhou 510560, Guangdong, Peoples R China
基金
中国国家自然科学基金;
关键词
Heavy metals; Human health; Vegetables; Rice; Dabaoshan mine; RISK-ASSESSMENT; LEAD/ZINC MINE; MINING AREAS; WASTE-WATER; VEGETABLES; ACCUMULATION; SMELTER; SITES; LEAD; TOXICITY;
D O I
10.1007/s10653-009-9248-3
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
This study was designed to investigate heavy metal (Cu, Zn, Pb, and Cd) contamination levels of soils, vegetables, and rice grown in the vicinity of the Dabaoshan mine, south China. The concentration of Cu, Zn, Pb, and Cd in paddy soil exceeded the maximum allowable concentrations for Chinese agricultural soil. The heavy metal concentrations (mg kg(-1), dry weight basis) in vegetables ranged from 5.0 to 14.3 for Cu, 34.7 to 170 for Zn, 0.90 to 2.23 for Pb, and 0.45 to 4.1 for Cd. The concentrations of Pb and Cd in rice grain exceeded the maximum permissible limits in China. Dietary intake of Pb and Cd through the consumption of rice and certain vegetable exceeded the recommended dietary allowance levels. The status of heavy metal concentrations of food crops grown in the vicinity of Dabaoshan mine and their implications for human health should be further investigated.
引用
收藏
页码:707 / 715
页数:9
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