Accumulation of polycyclic aromatic hydrocarbons and heavy metals in lettuce grown in the soils contaminated with long-term wastewater irrigation
文献类型：期刊论文
| 作者 | Khan, Sardar; Zhu, Yong-Guan; Hu, Qinhong; Zhang, Shuzhen; Aijun, Lin |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2008-04-01 |
| 卷号 | 152期号:2页码:506-515 |
| 关键词 | Heavy Metals Plant Uptake Polycyclic Aromatic Hydrocarbons Soil Contamination Wastewater Irrigation |
| 英文摘要 | Accumulation of polycyclic aromatic hydrocarbons (PAHs) and heavy metals (HMs) by crop plants from contaminated soils may pose health risks. A greenhouse pot experiment using lettuce (Lactuca satuva L.) as a representative vegetable was conducted to assess the concentrations of PAHs and HMs in vegetables grown in wastewater-contaminated soils. The concentrations of total PAHs were ranged from 1.5 to 3.4 mg kg(-1) in the contaminated soils, while 1.2 mg kg(-1) in the reference soil. Linear regression analyses showed that the relationships between soil and shoot PAH concentrations were stronger for LMW-PAHs (R(2) between 0.51 and 0.92) than for HMW-PAHs (R(2) 0.02 and 0.60), suggesting that translocation for LMW-PAHs is faster than HMW-PAHs. Furthermore, the data imply that root uptake was the main pathway for HMW-PAHs accumulation. The plant shoots were also highly contaminated with HMs, particularly Cd (0.4-0.9 mg kg(-1)), Cr (3.4-4.1 mg kg(-1)), Ni (11.7-15.1 mg kg(-1)) and Pb (2.3-5.3 mg kg(-1)), and exceed the guidance limits set by State Environmental Protection Administration (SEPA), China and the World Health Organization (WHO). This study highlights the potential health risks associated with cultivation and consumption of leafy vegetables on wastewater-contaminated soils. (c) 2007 Elsevier B.V. All rights reserved. |
| WOS记录号 | WOS:000254765100007 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/22310]  |
| 专题 | 生态环境研究中心_土壤环境科学实验室 |
| 推荐引用方式 GB/T 7714 | Khan, Sardar,Zhu, Yong-Guan,Hu, Qinhong,et al. Accumulation of polycyclic aromatic hydrocarbons and heavy metals in lettuce grown in the soils contaminated with long-term wastewater irrigation[J]. JOURNAL OF HAZARDOUS MATERIALS,2008,152(2):506-515. |
| APA | Khan, Sardar,Zhu, Yong-Guan,Hu, Qinhong,Zhang, Shuzhen,&Aijun, Lin.(2008).Accumulation of polycyclic aromatic hydrocarbons and heavy metals in lettuce grown in the soils contaminated with long-term wastewater irrigation.JOURNAL OF HAZARDOUS MATERIALS,152(2),506-515. |
| MLA | Khan, Sardar,et al."Accumulation of polycyclic aromatic hydrocarbons and heavy metals in lettuce grown in the soils contaminated with long-term wastewater irrigation".JOURNAL OF HAZARDOUS MATERIALS 152.2(2008):506-515. |
入库方式： OAI收割
来源：生态环境研究中心
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