Çelebi Ahmet, Şengörür Bülent, Torabi Haghighi Ali, Danandeh Mehr Ali
Department of Environmental Engineering, Faculty of Engineering, Sakarya University, 54050 Sakarya, Türkiye.
Faculty of Engineering, Kırklareli University, 39100 Kırklareli, Türkiye.
Toxics. 2024 Mar 13;12(3):213. doi: 10.3390/toxics12030213.
The accumulation of pollutants in the sediment along surface water may negatively affect riparian zones and increase ecological risk. This article investigates the effects of metal sediments on riparian soil via field monitoring and ICP-OES analysis. To this end, pollution levels, seasonal changes, and potential sources of the pollutants were determined for the Melen River watershed, Turkey. The ecological statuses (contamination factor, enrichment factor, index of geo-accumulation, pollution index, modified pollution index, and potential and modified ecological risk indexes) of the watershed were also analyzed. Although no significant seasonal differences in the metal sediments were observed, their spatial distribution in the sediments and riparian soils varied markedly. Cr (11.4 to 136), Co (7.7 to 21.52), Cu (11.4 to 76.6), and Ni (14.06 to 128.2) recorded as mg/kg significantly increased from the upstream to the downstream. The metals possessing the highest risk in the sediment and riparian soil regarding the river health were Cu, Co, and Ni. The risk values were found to be heavily polluted ( > 3 and > 10), and the risk indexes were above the "desired environment without the risk". The risk index was found to be more than 50, and the modified risk indexes exceeded 200 at many points. The transportation of pollutants in surface water became evident in the sediment, resulting in adverse effects on the riparian zone and the ecological system.
地表水中沉积物中污染物的积累可能会对河岸带产生负面影响，并增加生态风险。本文通过现场监测和电感耦合等离子体发射光谱分析研究了金属沉积物对河岸土壤的影响。为此，对土耳其梅伦河流域的污染水平、季节变化和污染物潜在来源进行了测定。还分析了该流域的生态状况（污染因子、富集因子、地累积指数、污染指数、修正污染指数以及潜在和修正生态风险指数）。尽管未观察到金属沉积物存在显著的季节差异，但其在沉积物和河岸土壤中的空间分布差异明显。以毫克/千克计的铬（11.4至136）、钴（7.7至21.52）、铜（11.4至76.6）和镍（14.06至128.2）从上游到下游显著增加。沉积物和河岸土壤中对河流健康风险最高的金属是铜、钴和镍。风险值被发现处于重度污染水平（>3和>10），风险指数高于“无风险的理想环境”。发现风险指数超过50，且在许多点修正风险指数超过200。地表水中污染物的输移在沉积物中变得明显，对河岸带和生态系统产生了不利影响。
