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首页> 外文期刊>Human and ecological risk assessment >Pollution, source, and ecological risk assessment of trace elements in surface sediments of Lake Aktas, NE Turkey
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Pollution, source, and ecological risk assessment of trace elements in surface sediments of Lake Aktas, NE Turkey

机译：土耳其东北部阿克塔斯湖表层沉积物中微量元素的污染，来源和生态风险评估

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摘要

This study applies ecological indices to determine the anthropogenic-based metal enrichment and potential ecological and ecotoxicological risks posed by each metal in the sediments of Lake Aktas, NE Turkey. Sediment samples were collected from nine stations (St1-St9) within the Turkish boundary of Lake Akta, s and the heavy metal, total organic carbon %, CaCO3%, chlorophyll degradation products (chlorophyll-alpha), total sulfur %, and total phosphate % contents in the sediment samples were determined. Enrichment factor (EF), pollution load and potential ecological risk (PER) indices were calculated to shed light on the ecological effects of heavy metals. The metal content was ranked in descending order of Al > Fe > Mn > Zn > Ni > Cr > Cu > Pb > As > Cd > Hg. The EF values ranged 0.87-1.0 for Cu, 1.04-1.14 for Pb, 1-1.08 for Zn, 0.88-0.95 for Ni, 0.99-1.24 for Mn, 0.89-0.93 for Fe, 0.82-1.01 for As, 0.96-1.19 for Cd, 0.94-1.0 for Cr, and 1.42-1.90 for Hg. Minimal contamination was found for Hg. Pollution load, PER, and toxic risk indices indicated no ecological risk currently. However, considering the PER index for metals individually, a moderate potential risk was detected for Hg. The data obtained from multivariate statistical analyses indicate that Hg and Mn originate from the atmosphere, while other elements have lithogenic sources.
机译：这项研究应用生态指数来确定土耳其东北部阿克塔斯湖沉积物中人为基础的金属富集以及每种金属构成的潜在生态和生态毒理风险。从阿克塔湖，s和重金属的土耳其边界内的九个站点（St1-St9）收集沉积物样本，总有机碳％，CaCO3％，叶绿素降解产物（叶绿素-α），总硫％和总磷酸盐测定沉积物样品中的％含量。计算了富集因子（EF），污染负荷和潜在生态风险（PER）指标，以了解重金属的生态效应。金属含量按Al> Fe> Mn> Zn> Ni> Cr> Cu> Pb> As> Cd> Hg的降序排列。 EF值的范围分别为：铜0.87-1.0，铅1.04-1.14，锌1-1.08，镍0.88-0.95，锰0.99-1.24，铁0.89-0.93，砷0.82-1.01，砷0.96-1.19 Cd，Cr 0.94-1.0和Hg 1.42-1.90。发现汞污染最小。污染负荷，PER和毒性风险指数表明目前没有生态风险。但是，单独考虑金属的PER指数，发现汞的潜在风险中等。从多变量统计分析获得的数据表明，汞和锰源自大气，而其他元素具有成岩作用。

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