Heavy Metal Pollution Assessment in Sediment of Mussel Habitats UsingGeochemical Indices

Journal of Integrated Coastal Zone Management Pub Date : 2019-01-01 DOI:10.24105/2473-3350.22.468

Hossein Saberi Kouchesfehani, S. N. Azizi

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引用次数: 0

Abstract

The heavy metals Pb, Cd, Cu, Zn, and Ni were analyzed in the soft tissue of mussels (Anodonta cygnea) as well as in sediments at five regions of Anzali Wetland, on the southern bank of the Caspian Sea during October and November 2016. The data were applied for assessing the pollution levels in emphasizing the mussel habitats by geochemical indices and furthermore answering the inquiry whether these indices can predict the contaminant level in the swan mussel soft tissue. The highest geochemical indices in the sediment: EF, Igeo, CF, and PLI revealed moderately to seriously contamination level of Cd and Pb in sampling sites. The sheijan and Bahambar also showed a higher contamination level of metals than in other regions. According to the ecological risk index (RI) Mahrouzeh, Hendekhaleh, Abkenar, and Bahambar areas were presented within the range of moderate risk level. Additionally, multivariate statistics showed that Ni is controlled by parent rocks and at the same time Pb, Cd, Cu, and Zn originated from anthropogenic sources. The highest geochemical data for Pb, Cd, Cu, Zn, and Ni recorded in Bahambar, Abkenar, Mahrouzeh, Sheijan, and Mahrouzeh respectively. But the highest accumulation of Pb, Cd, and Cu in mussel measured in Bahambar, Abkenar, and Mahrouzeh respectively, and also Zn and Ni in Hendekhaleh. Therefore, the geochemical index data does not always predict heavy metal contaminants into the soft tissue of mussels in sampling sites.

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基于地球化学指标的贻贝生境沉积物重金属污染评价

2016年10月至11月，对里海南岸安扎里湿地5个区域贻贝(Anodonta cygnea)软组织和沉积物中的重金属Pb、Cd、Cu、Zn和Ni进行了分析。利用地球化学指标评价贻贝生境的污染程度，回答了地球化学指标能否预测贻贝软组织污染程度的问题。沉积物中最高的地球化学指标EF、Igeo、CF和PLI显示了采样点Cd和Pb的中度至重度污染程度。sheijan和Bahambar的金属污染水平也高于其他地区。根据生态风险指数(RI)， Mahrouzeh、Hendekhaleh、Abkenar和Bahambar地区处于中等风险范围。多元统计表明，Ni受母岩控制，Pb、Cd、Cu、Zn受人为源控制。Bahambar、Abkenar、Mahrouzeh、Sheijan和Mahrouzeh的Pb、Cd、Cu、Zn和Ni地球化学数据最高。而在Bahambar、Abkenar和Mahrouzeh贻贝中Pb、Cd和Cu的累积量最高，在Hendekhaleh贻贝中Zn和Ni的累积量也最高。因此，地球化学指数数据并不总是能预测采样点贻贝软组织中的重金属污染物。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Integrated Coastal Zone Management Environmental Science-Water Science and Technology

CiteScore

2.00

自引率

0.00%

发文量

期刊介绍： Journal of Integrated Coastal Zone Management / Revista de Gestão Costeira Integrada is a peer-reviewed international journal that publishes articles dealing with all the subjects related to coastal zones and their management, namely focused on coastal oceanography (physical, geological, chemical, biological), engineering, economy, sedimentology, sociology, ecology, history, pollution, laws, biology, anthropology, chemistry, politics, etc. Published papers present results from both fundamental as well as applied, or directed research. Emphasis is given to results on interdisciplinary contributions, on management tools and techniques, on innovative methodological or technical developments, on items with wide general applicability, and on local or regional experiments that can be a source of inspirations to other regions. Journal of Integrated Coastal Zone Management is focused on coastal environments what means that embraces a wide area that extends from an indefinite distance inland to an indefinite limit seaward. Paleoenvironments, ancient shorelines, historical occupation, diachronically analysis and legislation evolution are some subjects considered to fall within the purview of the journal as well.