Heavy metal concentrations in water and surface sediments of Maharlou Lake, SE of Shiraz, Iran |
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引用本文: | Farid Moore Guiti Forghani Tehrani Afshin Qishlaqi Fatemeh Rastmanesh. Heavy metal concentrations in water and surface sediments of Maharlou Lake, SE of Shiraz, Iran[J]. 中国地球化学学报, 2006, 25(B08): 168-168 |
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作者姓名: | Farid Moore Guiti Forghani Tehrani Afshin Qishlaqi Fatemeh Rastmanesh |
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作者单位: | Farid Moore, Guiti Forghani Tehrani, Afshin Qishlaqi, Fatemeh Rastmanesh, Iran |
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摘 要: | The main objective of this study is to evaluate trace metal distribution and identify their sources in the Maharlou Lake. Trace metals (Cr, Co, Ni, Cu, Zn, Cd, Pb) and major elements (A1, Ca, Fe, K, Mg, Mn, Na, P) were investigated in water and surface sediments. There was a negative relationship between the depth of water and heavy metal concentration. Metal concentrations in water and sediment samples show a high variability and decrease in this order: Al〉Fe〉Ni〉Co〉Pb〉Zn〉Cu〉Mn〉Cd. In the northern parts of the lake, especially at the inflow of drains and the Khoshk River of Shiraz City, metal concentrations are higher in both water and sediment samples. In order to assess the heavy metal enrichment in sediment samples, trace metal concentrations were normalized for Al. Except for Mn, all metals are enriched relative to average crust and average sedimentary rocks. Also, the results showed that stations located at the northern coast of the lake, have higher enrichment factors (EF) than the other stations. The results of this study showed that the Khoshk River and other drains are the main pollutant sources of the Maharluo Lake.
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关 键 词: | 湖泊 沉积物 微量元素 污染源 水体污染 |
Heavy metal concentrations in water and surface sediments of Maharlou Lake, SE of Shiraz, Iran |
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Abstract: | |
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Keywords: | Maharluo Lake trace metal enrichment factor pollutant source Iran |
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