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题名Bioaccumulation and translocation of trace elements in soil-irrigation water-wheat in arid agricultural areas of Xin Jiang, China
作者
发表日期2020
发表期刊Ecotoxicology
ISSN/eISSN0963-9292
摘要

Pollution resulting from toxic trace elements is an increasing concern around the world especially in developing countries such as China. Rapid industrialisation, urbanisation and agricultural development are the dominant sources of anthropogenic contamination contributed to an increased potential toxicity of trace elements in the irrigation water–soil–food chain. Xin Jiang in China is a reserved cultivated land development area that could provide the most extensive strategic support for food production and arable land security in China. Thus, it is crucial to investigate the bioaccumulation and translocation of trace elements in order to assess the ecological and human health risks in the traditional oasis system of the agricultural areas in Bay Cheng County, Xin Jiang. This study analysed the levels of trace elements in different layers of the soil, the irrigation water and the wheat plants, and the relationships among them. The results indicated that cadmium (Cd) and chromium (Cr) were the primary pollutants in soils and wheats respectively, and they fell into the serious pollution category. However, no trace elements over the pollution limits were detected in irrigation water. The maximum values of trace elements appeared in the soil layers at 5–10 cm and 10–15 cm. The pollution levels of trace elements in the soil layers were found at 0–5 cm and 0–20 cm, which were higher than those at 20–80 cm. In wheat, high amounts of absorption for Se, Cr, Zn and Cu, but low for Pb were detected in different parts of a plant. The roots of wheats were more eco-toxic to Cd, Co and Pb than other tissues, indicating that roots were more effective at absorbing Cd, Co and Pb, as these metals are usually toxic in the soil. Se, Cu and Zn showed a higher ability of being transferred from soils to the edible parts of crops. The bio-transfer factors of Zn, Mo, Cu, Mg and Mn were considerably higher than those of other elements. The average cancer risk of As, Cd, Co, Ni and TCR in wheat grains exceeded the safety reference limit (1 × 10). For the exposed population, Cr in wheat was the major contributor to total cancer risk. The average values of HQ of Cr, Mn and As, and total non-cancer risk index exceeded the corresponding effective safe reference doses (HQ > 1).

关键词Bio-transfer factor Bioaccumulation and translocation Cancer risk Ecological and human health risk Toxic trace element
DOI10.1007/s10646-020-02267-4
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收录类别SCIE
语种英语English
WOS研究方向Environmental Sciences & Ecology ; Toxicology
WOS类目Ecology ; Environmental Sciences ; Toxicology
WOS记录号WOS:000563732500002
引用统计
被引频次:17[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符https://repository.uic.edu.cn/handle/39GCC9TT/1132
专题理工科技学院
通讯作者Yang, Lin sheng
作者单位
1.Key Laboratory of Land Surface Pattern and Simulation,Institute of Geographical Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing,11A Datun Road,100101,China
2.Centre for Environment and Population Health,Griffith University,Nathan,170 Kessel Road,4111,Australia
3.School of Medicine,Griffith University,Nathan,170 Kessel Road,4111,Australia
4.University of Chinese Academy of Sciences,Beijing,100049,China
5.Beijing Normal University–Hong Kong Baptist University United International College,Zhuhai,2000 Jintong Road, Tangjiawan,China
6.State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment,South China Institute of Environmental Sciences,Ministry of Environmental Protection,Guangzhou,510655,China
推荐引用方式
GB/T 7714
Tudi, Muyesaier,Ruan, Huada,Yu, Yunjianget al. Bioaccumulation and translocation of trace elements in soil-irrigation water-wheat in arid agricultural areas of Xin Jiang, China[J]. Ecotoxicology, 2020.
APA Tudi, Muyesaier., Ruan, Huada., Yu, Yunjiang., Wang, Li., Wei, Binggan., .. & Yang, Lin sheng. (2020). Bioaccumulation and translocation of trace elements in soil-irrigation water-wheat in arid agricultural areas of Xin Jiang, China. Ecotoxicology.
MLA Tudi, Muyesaier,et al."Bioaccumulation and translocation of trace elements in soil-irrigation water-wheat in arid agricultural areas of Xin Jiang, China". Ecotoxicology (2020).
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