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An analysis of the input flux and source of elements in dry and wet atmospheric deposition of southwest plain of Shandong:A case study of Juye County |
Zeng-Hui WANG( ) |
Shandong Institute of Geological Survey,Shandong Engineering Research Center of Land Quality Geochemistry and Pollution Prevention,Ji'nan 250014,China |
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Abstract Dry and wet atmospheric deposition is a main input pathway of some elements in the surface soil of agricultural areas, and its heavy metalelementcomponents mayhave a great influence on the environmental qualityof soil. Research on the dry and wet atmosphericdeposition of Juye County in Shandong Province shows that, with the rapid development of coal mining and chemical industry in recent years, total amount of dry and wet atmospheric deposition has been significantly increased in this area, and is also significantly higher than that of several other regions of China.The deposition flux of heavy metal elements in this region is also higher,the deposition fluxes of Pb, Cr, Cu, Ni can be 2~ 3 times those of other regions inChina. The enrichment degree of Cd, Pb, Hg and other elements in atmospheric deposition is higher, and the high value area of the enrichment factor(EF) coincides with the position of the emission source of coal mining and coal chemical industry, which indicates that the dry and wet atmospheric deposition in the industrial area is an important way for heavy metal elements like Cd, Pb, Hg to enter the soil. Industrial activities have an important influence on the increase of dry and wet atmospheric deposition in thisarea. In addition, the enrichment factor shows thatcoal burning dusts should be the main source of S and Se in atmospheric deposition and soil. Ni, Cr, As in atmospheric deposition should mainly originate from soil dusts, and thesources of Ca and Mg are closely related to the stone mining and cement manufacturing industry.
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Received: 01 November 2019
Published: 28 August 2020
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Bitmap of sampling points for atmospheric wet and dry deposition
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Total atmospheric dry and wet deposits in the study area
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元素 | As | Cd | Cr | Cu | Hg | Pb | Ni | Zn | Se | Fe | S | Ca | Mg | P | K | 区内通量算数均值 | 2.75 | 0.71 | 26.93 | 19.68 | 0.032 | 31.82 | 15.47 | 127 | 1.37 | 9.27 | 22.3 | 41.0 | 12.0 | 0.31 | 8.71 | 区内通量几何均值 | 2.49 | 0.67 | 22.24 | 17.72 | 0.030 | 30.23 | 13.76 | 115 | 1.14 | 8.21 | 12.8 | 28.5 | 9.5 | 0.24 | 7.45 | 区内通量最小值 | 1.14 | 0.38 | 9.04 | 8.11 | 0.020 | 17.77 | 5.95 | 56 | 0.35 | 3.75 | 4.5 | 8.5 | 2.6 | 0.09 | 2.96 | 区内通量最大值 | 5.61 | 1.16 | 73.20 | 42.45 | 0.070 | 57.07 | 34.50 | 243 | 3.11 | 22.36 | 123.5 | 203.4 | 40.4 | 1.27 | 21.46 | 区内(2005~2006) | 1.10 | 0.31 | 18.69 | 7.15 | 0.025 | 13.65 | 4.02 | 43 | 0.45 | | | | | 0.19 | 2.79 | 北京(2005~2006)[11] | 2.9 | 0.236 | 11.855 | 14.195 | 0.024 | 21.995 | 6.601 | 54.492 | | | | 9.264 | 3.236 | | 3.328 | 长春(2006~2007)[18] | 4.79 | 0.25 | 10.67 | 8.22 | 0.03 | 12.31 | | 48.15 | | | | | | | | 成都(2004~2005)[19] | 2.77 | 1.77 | | | 0.1 | 45.95 | | 147.83 | | | | 18.074 | 1.016 | | 2.009 |
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Statistics and comparison of atmospheric dry and wet deposition element fluxes in Juye County
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Comparison of annual increase rate of soil elements in plough layer caused by atmospheric deposition
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Scatter diagram of correlation between input fluxes of Fe and As, Cd, Pb, Hg in atmospheric sediment
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项目 | As | Cd | Cr | Cu | Hg | Pb | Ni | Zn | Se | Fe | S | Ca | Mg | P | K | 区内降尘含量均值 | 4.78 | 1.33 | 45.55 | 34.10 | 0.05 | 58.61 | 26.45 | 224.91 | 2.46 | 1.57 | 3.70 | 6.24 | 2.07 | 0.05 | 1.44 | 区内表层土壤背景值 | 10.85 | 0.17 | 68.2 | 21.9 | 0.03 | 21.24 | 28.27 | 66.88 | 0.17 | 3.15 | 0.023 | 4.28 | 1.31 | 0.108 | 1.93 | 菏泽表层土壤背景值 | 10.30 | 0.15 | 61.90 | 21.90 | 0.03 | 19.90 | 27.90 | 63.00 | 0.17 | 2.92 | 0.020 | 4.07 | 1.24 | 0.101 | 1.92 | 富集系数 | 0.44 | 7.81 | 0.67 | 1.56 | 1.75 | 2.76 | 0.94 | 3.36 | 14.33 | 0.50 | 160.38 | 1.46 | 1.58 | 0.47 | 0.75 | 富集因子(EF) | 0.86 | 16.45 | 1.37 | 2.89 | 3.47 | 5.47 | 1.76 | 6.63 | 26.93 | 1.00 | 344.16 | 2.85 | 3.10 | 0.94 | 1.39 |
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Average enrichment coefficient and enrichment factor of heavy metals and other elements in atmospheric deposits in the area
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Enrichment factors scatter diagram of Se with Cd, Ca in the atmospheric deposition of the study area
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Enrichment factors distribution map of Cd, Pb, Ca and Se of the atmospheric deposition in the study area
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