{"title":"Ecological Risk Assessment of Metals in Sediments from Three Stagnant Water Bodies in Northern Turkey","authors":"Memet Varol, Fikret Ustaoğlu, Cem Tokatlı","doi":"10.1007/s40726-022-00239-2","DOIUrl":null,"url":null,"abstract":"<div><h3>Purpose of Review</h3><p>In recent years, anthropogenic activities have caused metal pollution in the sediments of stagnant water bodies, and thus threatening aquatic ecosystems and human health. Therefore, determining the potential ecological risks, contamination degree, and possible sources of metals in sediment of stagnant water bodies is essential for effective management of metal pollution. In this study, we used contamination and risk assessment indices together with multivariate statistics to determine ecological risks and contamination degree of 14 metals in sediments of three important stagnant water bodies (Ladik Lake and Yedikır and Değirmendere dam lakes) in northern Turkey. In addition, the effects of organic matter (OM) and pH on metal accumulation in the sediments were also investigated.</p><h3>Recent Findings</h3><p>The mean contents of Al, V, Mn, Fe, Cu, Zn, and Pb did not differ significantly among the water bodies studied (<i>p</i> > 0.05). The Ladik Lake sediments had significantly lower pH level and higher OM content (<i>p</i> < 0.05). Contamination indices indicated that there was no significant metal contamination in the sediments of all water bodies. Similarly, ecological risk indices indicated that metals posed low ecological risks in the water bodies. According to the sediment quality guidelines, metals would not cause harm to benthic organisms. The accumulation of most metals in the Yedikır Dam Lake was controlled by OM, while the distribution of some metals was affected by both OM and pH in the Değirmendere Dam Lake. According to the factor analysis, all metals in the sediments of the water bodies studied mainly originated from natural sources.</p><h3>Summary</h3><p>The results of this study revealed that sediment contamination indices, ecological risk assessment methods, sediment quality guidelines, and multivariate statistics can be used as effective approaches in determining the environmental and ecological risks and pollution sources of metals in the sediments of stagnant water bodies. Thus, this study can provide important information for the ecological risk assessment and management of metals in the sediments of stagnant water bodies.</p></div>","PeriodicalId":528,"journal":{"name":"Current Pollution Reports","volume":"8 4","pages":"409 - 421"},"PeriodicalIF":6.4000,"publicationDate":"2022-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40726-022-00239-2.pdf","citationCount":"15","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Current Pollution Reports","FirstCategoryId":"93","ListUrlMain":"https://link.springer.com/article/10.1007/s40726-022-00239-2","RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 15
Abstract
Purpose of Review
In recent years, anthropogenic activities have caused metal pollution in the sediments of stagnant water bodies, and thus threatening aquatic ecosystems and human health. Therefore, determining the potential ecological risks, contamination degree, and possible sources of metals in sediment of stagnant water bodies is essential for effective management of metal pollution. In this study, we used contamination and risk assessment indices together with multivariate statistics to determine ecological risks and contamination degree of 14 metals in sediments of three important stagnant water bodies (Ladik Lake and Yedikır and Değirmendere dam lakes) in northern Turkey. In addition, the effects of organic matter (OM) and pH on metal accumulation in the sediments were also investigated.
Recent Findings
The mean contents of Al, V, Mn, Fe, Cu, Zn, and Pb did not differ significantly among the water bodies studied (p > 0.05). The Ladik Lake sediments had significantly lower pH level and higher OM content (p < 0.05). Contamination indices indicated that there was no significant metal contamination in the sediments of all water bodies. Similarly, ecological risk indices indicated that metals posed low ecological risks in the water bodies. According to the sediment quality guidelines, metals would not cause harm to benthic organisms. The accumulation of most metals in the Yedikır Dam Lake was controlled by OM, while the distribution of some metals was affected by both OM and pH in the Değirmendere Dam Lake. According to the factor analysis, all metals in the sediments of the water bodies studied mainly originated from natural sources.
Summary
The results of this study revealed that sediment contamination indices, ecological risk assessment methods, sediment quality guidelines, and multivariate statistics can be used as effective approaches in determining the environmental and ecological risks and pollution sources of metals in the sediments of stagnant water bodies. Thus, this study can provide important information for the ecological risk assessment and management of metals in the sediments of stagnant water bodies.
期刊介绍：
Current Pollution Reports provides in-depth review articles contributed by international experts on the most significant developments in the field of environmental pollution.By presenting clear, insightful, balanced reviews that emphasize recently published papers of major importance, the journal elucidates current and emerging approaches to identification, characterization, treatment, management of pollutants and much more.
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