Pioneering investigation of the characteristics and elemental concentrations in the environment of the declining Wadi Maryut Lake

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• 作者：M. I. Hassan ; H. M. Badran
• 关键词：Sediment ; Water ; Soil ; Wild plant ; Major and trace elements ; Wadi Maryut Lake
• 刊名：Environmental Monitoring and Assessment
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：188
• 期：3
• 全文大小：4,480 KB
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• 作者单位：M. I. Hassan (1)
  H. M. Badran (1) (2)
  
  1. Physics Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
  2. Physics Department, Faculty of Science, Taif University, Al-Haweiah, Taif, 21974, Saudi Arabia
  
• 刊物类别：Earth and Environmental Science
• 刊物主题：Environment
  Monitoring, Environmental Analysis and Environmental Ecotoxicology
  Ecology
  Atmospheric Protection, Air Quality Control and Air Pollution
  Environmental Management
  
• 出版者：Springer Netherlands
• ISSN：1573-2959

文摘

Wadi Maryut Lake is one of the remaining parts of the ancient Lake Mareotis and is not mentioned in the scientific literature. For the first time, physical and chemical characteristics as well as elemental concentrations in sediment, water, soil, and plants were determined. The lowest metal pollution indices are in the northeastern end of the lake and tend to increase toward the other end. In lake aquatic environment, Al, Fe, K, Mn, Na, B, and Cr are more likely to exist in insoluble form in the southwestern part and in soluble form in the northeastern part. Using different approaches to assess sediment contamination demonstrates that sediments can be categorized as unpolluted. However, the geo-accumulation index suggests that two locations have low anthropogenic influence of Pb and the enrichment factors and the degree of contamination indicate that Co and Pb may be enriched in sediment of some locations. Comparisons with consensus-based sediment quality guidelines revealed that no sample exceeded the probable effect concentration for Cr, Cu, Ni, Pb, and Zn. The most mobile elements in sediment-water and soil-plant systems are Na, K, and Pb. In sediment-water system, Al, Fe, and Mn oxides have the major influence on scavenging of B, K, and Cr. Similarity in the occurrences of Mn, K, and Fe in soil and Mn and Fe in wild plant was found. This work demonstrates the state of decontamination of the lake and confirms its importance as a reference and comparative case for south Mediterranean coastal water bodies.