Multivariate geochemical investigation of trace metal pollution in Kuwait marine sediments |
| |
| Institution: | 1. Department of Architecture and Civil Engineering, Water Environment Technology, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden;2. Recycling and Waste Management, Renova AB, Box 156, SE-401 22 Gothenburg, Sweden;3. Swedish National Road and Transport Research Institute (VTI), Box 8072, SE-402 78 Gothenburg, Sweden;1. Sorbonne Université, CNRS, Adaptation et Diversité en Milieu Marin AD2M UMR 7144, Station Biologique de Roscoff, Place Georges Teissier CS90074, F-29688 Roscoff, France;2. Muséum National d''Histoire Naturelle, Sorbonne Universités, ISYEB (UMR 7205 CNRS, MNHN, UPMC, EPHE), CP26, 57 rue Cuvier, F-75005 Paris, France |
| |
| Abstract: | Three multivariate procedures (cluster analysis, discrimination and classification) were used to identify and characterize various types of marine sediments in Kuwait. Samples from 201 offshore locations were first clustered into five types of sediments with different metal concentrations (Ag, Cd, Cr, Cu, Fe, Mn, Ni, Pb, V, Zn and Hg) and sedimentological characteristics (% TOC, carbonate, mean grain size and % size fraction < 63 μ). Discriminant functions were then developed in terms of trace metal concentrations to describe mathematically differences between the various sediment types. A classification procedure was also used to calculate the probability that each of 186 additional samples from coastal areas adjacent to suspected point sources of pollution may belong to each of the five sediment types. This analysis identified a sixth type of sediment dominating the area inside and near the entrance of Shuwaikh Port. Characterized by elevated levels of Ag, Cd, Cu, Hg, Pb and Zn, this type indicated the presence of a high level of metal pollution in the area. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
