Metal Uptake in Plants and Health Risk Assessments in Metal-Contaminated Smelter Soils

被引:192
作者
Roy, Mimi [1 ]
McDonald, Louis M. [2 ]
机构
[1] Auburn Univ, Dept Crop Soil & Environm Sci, Auburn, AL 36849 USA
[2] W Virginia Univ, Div Plant & Soil Sci, Morgantown, WV 26506 USA
关键词
metal contamination; toxicity; chemical extraction; metal availability; health risk assessments; HEAVY-METALS; SEQUENTIAL EXTRACTION; LEAD PHYTOEXTRACTION; CADMIUM; CD; BIOAVAILABILITY; ACCUMULATION; VEGETABLES; RADISH; PB;
D O I
10.1002/ldr.2237
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Metal pollution is an important concern because of its potential to affect human health. Metals such as lead and cadmium can enter soil via the food chain and exceed normal limits, producing harmful effects. In this study, six common garden and residential plant species were grown in soils from Spelter, WV, USA, contaminated with a variety of metals including lead (Pb), zinc (Zn), cadmium (Cd), and copper (Cu). Plant species included radish, carrot, chicory, spinach, lettuce, and clover. Metal concentrations in plant tissues were compared with metal concentration in soil by a multi-step chemical extraction. The largest accumulation of Pb (126mgkg(-1)) and Zn (1493mgkg(-1)) was seen in radish roots, with Cd (40mgkg(-1)) having the largest accumulation in carrot roots. Comparisons of plant availability with soil chemical extractions indicated that the combined soluble and exchangeable fractions could estimate available Zn and Cd for all six plant species. For Pb and Cu, however, the comparisons indicate that these two elements were not readily available in Spelter soils. A health risk assessment was carried out for residents at Spelter on the basis of edible tissue concentrations and publicly available consumption data. Uptake of Cd by carrot roots was about five times more than the regulatory limits for men, eight times more for women, and 12 times more for children. On the basis of the results, carrot and lettuce grown in these soils have the potential to cause toxicological problems in men, women, and young children resulting from Cd and Zn accumulation. Copyright (c) 2013 John Wiley & Sons, Ltd.
引用
收藏
页码:785 / 792
页数:8
相关论文
共 63 条
[41]  
Nelson R. E., 1982, Methods of soil analysis. Part 2. Chemical and microbiological properties, P181
[42]   QUANTITATIVE ASSESSMENT OF WORLDWIDE CONTAMINATION OF AIR, WATER AND SOILS BY TRACE-METALS [J].
NRIAGU, JO ;
PACYNA, JM .
NATURE, 1988, 333 (6169) :134-139
[43]   A history of global metal pollution [J].
Nriagu, JO .
SCIENCE, 1996, 272 (5259) :223-224
[44]   Soil and human health: a review [J].
Oliver, MA .
EUROPEAN JOURNAL OF SOIL SCIENCE, 1997, 48 (04) :573-592
[45]   Monitoring approaches to assess bioaccessibility and bioavailability of metals: Matrix issues [J].
Peijnenburg, WJGM ;
Jager, T .
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY, 2003, 56 (01) :63-77
[46]   Metal partitioning in river sediments measured by sequential extraction and biomimetic approaches [J].
Peng, SH ;
Wang, WX ;
Li, XD ;
Yen, YF .
CHEMOSPHERE, 2004, 57 (08) :839-851
[47]   The biochemistry of environmental heavy metal uptake by plants: Implications for the food chain [J].
Peralta-Videa, Jose R. ;
Lopez, Martha Laura ;
Narayan, Mahesh ;
Saupe, Geoffrey ;
Gardea-Torresdey, Jorge .
INTERNATIONAL JOURNAL OF BIOCHEMISTRY & CELL BIOLOGY, 2009, 41 (8-9) :1665-1677
[48]  
Ross D S., 1995, Recommended Methods for Determining Soil Cation Exchange Capacity, P75, Patent No. [493:62, 49362]
[49]   Interspecies comparisons of micronutrient requirements: Metabolic vs. absolute body size [J].
Rucker, R ;
Storms, D .
JOURNAL OF NUTRITION, 2002, 132 (10) :2999-3000
[50]   Lead phytoextraction from contaminated soil with high-biomass plant species [J].
Shen, ZG ;
Li, XD ;
Wang, CC ;
Chen, HM ;
Chua, H .
JOURNAL OF ENVIRONMENTAL QUALITY, 2002, 31 (06) :1893-1900