M. Rusu, I. Cara, Manuela Filip, Anca Elena Anca-Elena CALISTRU, D. Țopa, G. Jităreanu
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引用次数: 0
摘要
当前,全球对重金属污染的关注是在快速城市化和工业化发展的推动下产生的。为此,在日本雅西生命科学大学Adamachi农场对果园土壤中重金属(Pb、Co、Zn、Ni和Cu)的浓度及其在两个李子品种(Stanley和Anna Späth)上的转移进行了实地研究。此外,还对重金属转移(MTF)、每日金属摄入量(DIM)和健康风险指数(HRI)进行了评价。采用HNO3(65%)、HCl(37%)和HClO4(60%)混合酸消解后的原子吸收光谱法测定土壤和李叶样品中Pb、Co、Zn、Ni和Cu的浓度。土壤样品中Cu、Zn、Ni、Pb、Co的富集规律为:130.65>76.6>30.36> 21.69>13.26 mg/kg,李子叶片中Zn、Cu、Ni、Pb的富集规律为:20.16>10.00> 2.10>1.68 mg/kg,未检出Co残留。土壤表层(0 ~ 30 cm)重金属含量最高,主要受土壤有机无机含量和抗真菌处理的影响。成人和儿童的健康风险预测指数(HRI)均为Pb > Cu > Ni > Zn,未超过安全限值,无健康风险(1)。因此,应谨慎有效地管理重金属转移的原因和来源,防止环境污染。
TRANSFER OF HEAVY METALS IN SOIL IN-PLUM CULTIVATION: A FIELD STUDY IN ADAMACHI IASI, ROMANIA
Currently, global environmental concerns about heavy metal pollution are driven by rapid urbanization and industrial development. Therefore, a field study was conducted to assess the concentration of heavy metals (Pb, Co, Zn, Ni and Cu) in orchard soils and its transfer to two plum varieties (Stanley and Anna Späth) at Adamachi Farm – Iasi University of Life Sciences (IULS). In addition, heavy metal transfer (MTF), daily metals intake (DIM) and the index of health risk (HRI) were evaluated. The concentration of Pb, Co, Zn, Ni and Cu in soil and plum leaves samples were analyzed using atomic absorption spectrometry after acid digestion with a mixture of HNO3 (65%), HCl (37%) and HClO4 (60%). Metal concentration patterns occurred as follows 130.65>76.6>30.36> 21.69>13.26 mg/kg for Cu, Zn, Ni, Pb and Co in soil samples and 20.16>10.00> 2.10>1.68 mg/kg for Zn, Cu, Ni and Pb in plum leaves, while Co residue was not detected. The maximum heavy metal concentrations were found at the soil surface (0 – 30 cm depth) due to soil organo-mineral content and antifungal treatments. The health risk index predicted (HRI) for adults as well as children was in the sequence Pb > Cu > Ni > Zn, suggesting no health risk with values that did not exceed the safe limit (1). Therefore, it is essential to manage the causes and sources of heavy metal transfer prudently and effectively in order to prevent environmental contamination.