ASSESSMENT OF THE IMPACT OF INDUSTRIAL DEVELOPMENT AT THE COAST OF LÉVRIER BAY THROUGH THE SPATIO-TEMPORAL STUDY OF METALLIC CONTAMINANTS (CD, PB, CU, ZN AND HG) IN SURFACE SEDIMENTS

IF 0.7 Q4 GEOGRAPHY, PHYSICAL

Geographia Technica Pub Date : 2020-07-23 DOI:10.21163/gt_2020.152.13

M’Beirika Ahmed Salem Cheikh, Mohamed Salem El Mahmoud-Hamed, D. Mamadou, Harouna Tounkara, Mohamed El Housseine Legraa, M. Ramdani, Z. Sidoumou

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引用次数: 1

Abstract

: Lévrier Bay is located at the northern Atlantic Mauritanian coast, between 19 ° 20’N and 20 ° 40’N and between the coast and 17 ° 20W in the vicinity of Cap Blanc peninsula. This work aims at contributing to the assessment the impact of industrial development in the Lévrier Bay through the study of the toxicity and the spatio-temporal distribution of trace metals (Cd, Pb, Cu, Zn and Hg) in surface sediments, during the four hydrological seasons. The trace metal concentrations of the sediments are generally heterogeneous and vary according to the metal analyzed and the sampling site according to the order Zn> Cu>Pb> Cd>Hg. In fact, the present work shows higher average concentrations of metals studied in surface sediments than those found for the same metallic elements in previous recent studies at Lévrier Bay, which may be due to anthropogenic pressure in these areas. , especially since the different sites of the Bay are deprived of any sanitation system. In addition, the levels of these metals in the sediments of Lévrier Bay are below the international standards recommended for the toxicity assessment of sediments.

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通过地表沉积物中金属污染物（CD、PB、CU、ZN和HG）的时空研究评估勒夫里耶湾沿岸工业发展的影响

：莱夫里尔湾位于北大西洋毛里塔尼亚海岸，北纬19°20'N至20°40'N之间，西海岸17°20'W之间，位于Cap Blanc半岛附近。这项工作旨在通过研究四个水文季节表层沉积物中微量金属（Cd、Pb、Cu、Zn和Hg）的毒性和时空分布，为评估莱夫里尔湾工业发展的影响做出贡献。沉积物的微量金属浓度通常是不均匀的，并且根据所分析的金属和采样地点而变化，其顺序为Zn>Cu>Pb>Cd>Hg。事实上，目前的研究表明，表层沉积物中研究的金属平均浓度高于最近在莱夫里尔湾进行的研究中发现的相同金属元素的平均浓度，这可能是由于这些地区的人为压力，特别是因为海湾的不同地点都没有任何卫生系统。此外，莱夫里尔湾沉积物中这些金属的含量低于沉积物毒性评估建议的国际标准。

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

Geographia Technica GEOGRAPHY, PHYSICAL-

CiteScore

2.30

自引率

14.30%

发文量

期刊介绍： Geographia Technica is a journal devoted to the publication of all papers on all aspects of the use of technical and quantitative methods in geographical research. It aims at presenting its readers with the latest developments in G.I.S technology, mathematical methods applicable to any field of geography, territorial micro-scalar and laboratory experiments, and the latest developments induced by the measurement techniques to the geographical research. Geographia Technica is dedicated to all those who understand that nowadays every field of geography can only be described by specific numerical values, variables both oftime and space which require the sort of numerical analysis only possible with the aid of technical and quantitative methods offered by powerful computers and dedicated software. Our understanding of Geographia Technica expands the concept of technical methods applied to geography to its broadest sense and for that, papers of different interests such as: G.l.S, Spatial Analysis, Remote Sensing, Cartography or Geostatistics as well as papers which, by promoting the above mentioned directions bring a technical approach in the fields of hydrology, climatology, geomorphology, human geography territorial planning are more than welcomed provided they are of sufficient wide interest and relevance.