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Distribution characteristics and correlation of heavy metals in soil and total suspended particles of Urumqi City
International Journal of Environmental Science and Technology ( IF 3.0 ) Pub Date : 2021-05-09 , DOI: 10.1007/s13762-021-03371-6
A. Baidourela , L. Liu , K. Zhayimu , C. Pan , R. Manglike , X. Peng , M. Abudukadeer

In this study, soil and total suspended particles samples (TSP) were collected from different soil layers in four functional areas of Urumqi City, Northwest China, and electric heating plate digestion and inductively coupled plasma-optical emission spectrometry (ICP-OES) were used to determine the mass fractions and spatial distribution of six heavy metals. The aim was to determine the effects of human activities on the urban soil and atmosphere and provide a theoretical basis for environmental protection and management in Urumqi. The results showed that: (1) The average mass fractions of Cr, Cu, Mn, Ni, Pb, and Zn were 129.24, 42.445, 691.70, 48.705, 31.36, and 126.5 mg kg−1, respectively; the average mass fractions of Cr, Zn, Ni, and Cu exceeded the limit of the national soil standard; the pollution indexes were 1.44, 1.27, 1.22, and 1.21, respectively. (2) The heavy metal contents of surface soils are higher in the industrial, traffic, and cultural and educational areas than in the clean park area; in the vertical section, the heavy metals in the industrial, traffic, and culture and education areas show a weak epimerism, and the soil in the park area shows a good primitivity. (3) The ratios of the highest to lowest concentration of heavy metals in TSP can be ranked as follows: Pb (9.75) > Mn (2) > Ni (1.48) > Cr (1.36) > Cu (1.32) > Zn (1.17). (4) The correlations of heavy metals between the soil and TSP are significant, indicating that dry and wet deposition significantly affect the heavy metal content of the soil.



中文翻译:

乌鲁木齐市土壤和总悬浮颗粒物中重金属的分布特征及相关性

本研究从西北乌鲁木齐市四个功能区的不同土壤层中收集土壤和总悬浮颗粒样品(TSP),并使用电热板消解和电感耦合等离子体发射光谱法(ICP-OES)确定六种重金属的质量分数和空间分布。目的是确定人类活动对城市土壤和大气的影响,并为乌鲁木齐市的环境保护和管理提供理论依据。结果表明:(1)Cr,Cu,Mn,Ni,Pb和Zn的平均质量分数为129.24、42.445、691.70、48.705、31.36和126.5 mg kg -1, 分别; Cr,Zn,Ni和Cu的平均质量分数超过了国家土壤标准的限值;污染指数分别为1.44、1.27、1.22和1.21。(2)工业,交通,文化和教育地区的表层土壤重金属含量高于清洁公园地区;在垂直部分,工业,交通,文化和教育领域的重金属表现出较弱的差向性,公园区域的土壤表现出良好的原始性。(3)可将TSP中重金属的最高浓度与最低浓度的比率排序如下:铅(9.75)>锰(2)>镍(1.48)>铬(1.36)>铜(1.32)>锌(1.17) )。(4)土壤与TSP之间的重金属之间的相关性很显着,

更新日期:2021-05-09
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