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首页> 外文期刊>Journal of Environmental Science and Health >Geochemical properties of topsoil around the coal mine and thermoelectric power plant
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Geochemical properties of topsoil around the coal mine and thermoelectric power plant

机译：煤矿热电厂周围表土的地球化学特征。

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摘要

The results of the systematic study of the spatial distribution of trace metals in surface soil over the Bitola region, Republic of Macedonia, known for its coal mine and thermo-electrical power plant activities are reported. The investigated region (3200 km(2)) is covered by a sparse sampling grid of 5 x 5 km, but in the urban zone and around the thermoelectric power plant the sampling grid is denser (1 x 1 km). In total, 229 soil samples from 149 locations were collected including top-soil (0-5 cm) and bottom-soil samples (20-30 cm and 0-30 cm). Inductively coupled plasma - atomic emission spectrometry (ICP-AES) was applied for the determinations of 21 elements (Al, As, B, Ba, Ca, Cd, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Na, Ni, P, Pb, Sr, V and Zn). Based on the results of factor analyses, three geogenic associations of elements have been defined: F1 (Fe, Ni, V, Co, Cr, Mn and Li), F2 (Zn, B, Cu, Cd, Na and K) and F3 (Ca, Sr, Mg, Ba and Al). Even typical trace metals such as As, Cd, Cu, Ni, P, Pb and Zn are not isolated into anthropogenic geochemical associations by multivariate statistical methods still show some trends of local anthropogenic enrichment. The distribution maps for each analyzed element is showing the higher content of these elements in soil samples collected around the thermoelectric power plants than their average content for the soil samples collected from the whole Bitola Region. It was found that this enrichment is a result of the pollution by fly ash from coal burning which deposited near the plant having a high content of these elements.
机译：据报道，对以马其顿共和国的煤矿和热电厂活动而闻名的马其顿共和国比托拉地区表层土壤中微量金属的空间分布进行了系统研究的结果。被调查的区域（3200 km（2））被5 x 5 km的稀疏采样网格覆盖，但是在市区和热电厂周围，采样网格更密集（1 x 1 km）。总共收集了来自149个地点的229个土壤样品，包括顶部土壤（0-5厘米）和底部土壤样品（20-30厘米和0-30厘米）。电感耦合等离子体原子发射光谱法（ICP-AES）用于测定21种元素（Al，As，B，Ba，Ca，Cd，Co，Cr，Cu，Fe，K，Li，Mg，Mn，Na ，Ni，P，Pb，Sr，V和Zn）。根据因子分析的结果，定义了元素的三个地质联系：F1（铁，Ni，V，Co，Cr，Mn和Li），F2（锌，B，Cu，Cd，Na和K）和F3 （钙，锶，镁，钡和铝）。多元统计方法甚至没有将典型的痕量金属（如砷，镉，铜，镍，磷，铅和锌）分离为人为地球化学组合，仍然显示出局部人为富集的趋势。每个分析元素的分布图显示，在热电厂周围收集的土壤样品中这些元素的含量高于从整个比托拉地区收集的土壤样品的平均含量。已经发现，这种富集是煤燃烧产生的飞灰污染的结果，这些飞灰沉积在具有高含量这些元素的植物附近。

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