Background and threshold values of potentially toxic elements in soil at Central part of Republic of Serbia

Q4 Biochemistry, Genetics and Molecular Biology Ratarstvo i Povrtarstvo Pub Date : 2019-01-01 DOI:10.5937/RATPOV56-19692
V. Mrvić, B. Sikirić, D. Jaramaz, N. Koković, M. Nikoloski
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引用次数: 2

Abstract

The study used data from the project "Fertilization control and content determination of harmful and dangerous substances in the soil of the Republic of Serbia" (1993-2007). The soil samples were obtained from the surface horizon for content determination of heavy metals pseudo-total forms (HNO3 and H2O2). Based on 5,022 soil samples, the variations and limits of the background values for As, Cr, Cu, Ni, Pb and Zn were determined by the following methods: [Mean ± 2Sd], [Median ± 2MAD], and boxplot-Tukey upper threshold (TIF). The obtained values were the lowest with the employment of Median + 2MAD method, for most elements between 87 and 90%, which means that there was a significant number of locations with unusual values which needs special attention. The other two methods gave more approximate values, generally between 95-98%. Inside research it is considered the most appropriate method and relationship with the limit values inside Serbian regulations. Due to the significant difference in Ni and Cr by geological units in the Republic of Serbia, it is necessary to determine two background limits for these elements-for soils on serpentine rock (and on the material originating from them) and for other soils.
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塞尔维亚共和国中部土壤中潜在有毒元素的背景值和阈值
该研究使用了“塞尔维亚共和国土壤中有害和危险物质的施肥控制和含量测定”项目(1993-2007年)的数据。土壤样品取自地表水平,测定重金属赝总形态(HNO3和H2O2)的含量。基于5022份土壤样品,采用[Mean±2Sd]、[Median±2MAD]和box - plot- tukey上限阈值(TIF)法确定了As、Cr、Cu、Ni、Pb和Zn背景值的变化和限值。使用中位数+ 2MAD方法得到的值最低,大多数元素的值在87 ~ 90%之间,这意味着有相当多的位置存在异常值,需要特别注意。另外两种方法给出了更接近的值,一般在95-98%之间。在内部研究中,它被认为是最适当的方法,并与塞尔维亚规定内的极限值的关系。由于塞尔维亚共和国不同地质单元在镍和铬方面的显著差异,有必要确定这些元素的两个背景限度——蛇形岩石上的土壤(以及源自它们的物质)和其他土壤。
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来源期刊
Ratarstvo i Povrtarstvo
Ratarstvo i Povrtarstvo Agricultural and Biological Sciences-Soil Science
CiteScore
0.80
自引率
0.00%
发文量
4
审稿时长
4 weeks
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