A. Petukhov, T. Kremleva, Nikolay Khritokin, Galina Petukhova
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引用次数: 0
摘要
本文研究了秋明市城市污染中重金属土壤向马蹄的迁移。土壤和植物样本于2017年至2020年夏季在控制点、高速公路、发动机制造厂、炼油厂、电池制造厂和冶炼厂收集。采用原子吸收光谱和原子发射光谱分析了重金属(Cu、Zn、Fe、Mn、Pb、Cd、Ni、Co和Cr)在土壤中的流动形态和酸溶形态，以及植物中的重金属浓度。城市土壤中金属含量超标1.1 ~ 20倍。金属相对富集量的大小顺序为Pb > Cu > Zn > Ni > Cr > Fe > Co > Mn > Cd。重金属在土壤中的迁移率依次为:Cd > Mn > Pb > Zn > Ni = Cu > Co > Cr > Fe。金属富集的顺序为Fe > Zn = Mn > Pb > Cu > Cr > Co > Ni > Cd。大多数金属污染最严重的是冶炼厂，而镍和钴的浓度在炼油厂最高。油菜中Cu、Zn、Fe、Cd、Ni、Co的含量与土壤中的浓度呈正相关。生物富集因子显示:Cu > Zn > Cd > Pb > Ni > Mn > Cr > Co > Fe。在对以该植物为原料的中草药进行卫生控制时，应考虑到荠菜中重金属的积累。
Heavy Metal Migration in Soil-Plant System in Conditions of Urban Environmental Pollution
This study is devoted to heavy metal soil migration to coltsfoot in urban pollution of Tyumen city. Soil and plant samples were collected in the summer of 2017 to 2020 at the control site, highway, engine-building, oil refinery, battery manufacturing, and metallurgical plants. Heavy metals (Cu, Zn, Fe, Mn, Pb, Cd, Ni, Co, and Cr) mobile and acid-soluble forms in soils, and metals concentration in plants were analyzed by atomic absorption and atomic emission spectroscopy. Metals concentration in soils of urban area exceeded the control by 1.1 to 20 times. Relative accumulation of metals decreased in the order: Pb > Cu > Zn > Ni > Cr > Fe > Co > Mn > Cd. Heavy metals mobility in soils decreased in the order: Cd > Mn > Pb > Zn > Ni = Cu > Co > Cr > Fe. Coltsfoot metal accumulation changed in the order: Fe > Zn = Mn > Pb > Cu > Cr > Co > Ni > Cd. The highest contamination for most of the metals was at the metallurgical plant, while Ni and Co concentrations were maximum at the oil refinery. Content of Cu, Zn, Fe, Cd, Ni, and Co in coltsfoot correlated with a concentration in soils. Bioconcentration factor showed the following metal bioavailability: Cu > Zn > Cd > Pb > Ni > Mn > Cr > Co > Fe. Heavy metal accumulation in coltsfoot should be taken into account during sanitary control of herb drugs based on this plant.
期刊介绍：
Air, Soil & Water Research is an open access, peer reviewed international journal covering all areas of research into soil, air and water. The journal looks at each aspect individually, as well as how they interact, with each other and different components of the environment. This includes properties (including physical, chemical, biochemical and biological), analysis, microbiology, chemicals and pollution, consequences for plants and crops, soil hydrology, changes and consequences of change, social issues, and more. The journal welcomes readerships from all fields, but hopes to be particularly profitable to analytical and water chemists and geologists as well as chemical, environmental, petrochemical, water treatment, geophysics and geological engineers. The journal has a multi-disciplinary approach and includes research, results, theory, models, analysis, applications and reviews. Work in lab or field is applicable. Of particular interest are manuscripts relating to environmental concerns. Other possible topics include, but are not limited to: Properties and analysis covering all areas of research into soil, air and water individually as well as how they interact with each other and different components of the environment Soil hydrology and microbiology Changes and consequences of environmental change, chemicals and pollution.
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