Assessment of trace metal bioavailability in garden soils and health risks via consumption of vegetables in the vicinity of Tongling mining area, China

被引:138
作者
Xu, Decong [1 ,2 ]
Zhou, Ping [1 ]
Zhan, Jing [1 ]
Gao, Yi [1 ]
Dou, Changming [3 ]
Sun, Qingye [1 ]
机构
[1] Anhui Univ, Sch Resources & Environm Engn, Hefei 230601, Anhui, Peoples R China
[2] Suzhou Univ, Sch Chem & Life Sci, Suzhou 234000, Anhui, Peoples R China
[3] Anhui Inst Environm Sci, Hefei 230061, Anhui, Peoples R China
基金
中国国家自然科学基金;
关键词
Garden soils; Vegetables; Trace metal bioavailability; Health risk; Tongling mining area; SLUDGE-AMENDED SOILS; HEAVY-METALS; EXTRACTION METHODS; DABAOSHAN MINE; CONTAMINATION; ZN; ELEMENTS; CD; CROPS; PLANT;
D O I
10.1016/j.ecoenv.2012.12.018
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Environmental pollution due to mining activities has been reported in many countries. In this study, 283 vegetable and 44 corresponding garden soil samples were collected in the vicinity of the Tongling mining area, China. The aim was to evaluate the bioavailability of trace metals (Cu, Zn, Pb and Cd) to vegetables by comparing different methods (trace metals in DTPA, EDTA, HCl, NH4NO3, NH(4)OAC aqueous solutions and total metals in garden soils), and assess the potential health risks of trace metals to the local population via vegetable consumption. The results showed that the mean values of total Cu and Cd in the soil samples exceeded the Grade II national standard in China. Average concentrations of Cd and Pb in some vegetable samples were higher than the maximum permissible concentration in China. The transfer factors for trace metals in different vegetables showed a trend of Cd > Zn > Cu > Pb. Asteraceae vegetables had stronger metal uptake than Liliaceae. The total target hazard quotient (THQ) value was greater than 1, suggesting that trace metals in vegetables could present some potential health risks. The effectiveness of the studied methods for estimating soil metal bioavailability was generally dependent on the particular metal and vegetable species. Overall, 1.0 M NH(4)OAC provided the best estimate of Cd and Zn bioavailability in multi-elemental contaminated soils. None of the studied soil metal extraction methods appeared suitable for measuring Cu or Pb bioavailability, especially for Pb, which showed almost no correlation between metal concentration in soil and vegetables. (C) 2012 Elsevier Inc. All rights reserved.
引用
收藏
页码:103 / 111
页数:9
相关论文
共 49 条
[11]   Trace metal behaviour in estuarine and riverine floodplain soils and sediments: A review [J].
Du Laing, G. ;
Rinklebe, J. ;
Vandecasteele, B. ;
Meers, E. ;
Tack, F. M. G. .
SCIENCE OF THE TOTAL ENVIRONMENT, 2009, 407 (13) :3972-3985
[12]   Toxicity assessment of garden soils in the vicinity of mining areas in Southern Morocco [J].
El Hamiani, Ouafae ;
El Khalil, Hicham ;
Lounate, Khalifa ;
Sirguey, Catherine ;
Hafidi, Mohamed ;
Bitton, Gabriel ;
Schwartz, Christophe ;
Boularbah, Ali .
JOURNAL OF HAZARDOUS MATERIALS, 2010, 177 (1-3) :755-761
[13]   Comparison of a rhizosphere-based method with other one-step extraction methods for assessing the bioavailability of soil metals to wheat [J].
Feng, MH ;
Shan, XQ ;
Zhang, SZ ;
Wen, B .
CHEMOSPHERE, 2005, 59 (07) :939-949
[14]   Trace elements contamination in an abandoned mining site in a semiarid zone [J].
Garcia-Lorenzo, M. L. ;
Perez-Sirvent, C. ;
Martinez-Sanchez, M. J. ;
Molina-Ruiz, J. .
JOURNAL OF GEOCHEMICAL EXPLORATION, 2012, 113 :23-35
[15]   Assessment of single extraction methods for the prediction of bioavailability of metals to Brassica juncea L. Czern. (var. Vaibhav) grown on tannery waste contaminated soil [J].
Gupta, Amit K. ;
Sinha, Sarita .
JOURNAL OF HAZARDOUS MATERIALS, 2007, 149 (01) :144-150
[16]   Heavy Metal Transfer from Soil to Vegetable in Southern Jiangsu Province, China [J].
Hao Xiu-Zhen ;
Zhou Dong-Mei ;
Huang De-Qian ;
Cang Long ;
Zhang Hai-Lin ;
Wang Hui .
PEDOSPHERE, 2009, 19 (03) :305-311
[17]  
JECFA, 1993, JECFA TECHN REP SER
[18]   Soil and vegetables enrichment with heavy metals from geological sources in Gilgit, northern Pakistan [J].
Khan, Sardar ;
Rehman, Shafiqur ;
Khan, Anwar Zeb ;
Khan, M. Amjad ;
Shah, M. Tahir .
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY, 2010, 73 (07) :1820-1827
[19]  
Lacatusu R, 1996, APPL GEOCHEM, V11, P105
[20]   DEVELOPMENT OF A DTPA SOIL TEST FOR ZINC, IRON, MANGANESE, AND COPPER [J].
LINDSAY, WL ;
NORVELL, WA .
SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 1978, 42 (03) :421-428