Author: uset

3C - Channel Catchments Cluster

3C - Channel Catchments Cluster

A GIS-based approach of the spatiotemporal
distribution of trace elements in the
sediments of the Solent (UK)
A first spatio-temporal integrated approach

J. Richir*, J.M. Pini, S. White, G.J. Watson (* jonathan.richir@port.ac.uk)
Institute of Marine Sciences, School of Biological Sciences,
University of Portsmouth, Ferry Road, Portsmouth, PO4 9LY, UK

Zn

Hg

Cu

Caption - Spatiotemporal evolution of Zn, Hg and Cu in < 63 µm sediments in the Solent area (English coast of the Channel, UK). The Enrichment Factor (EF = Cn/Bn) of a trace element is the ratio between its concentration in the sediments (Cn) and its natural background concentration (Bn; Tomlinson et al., 1980 - Helgolander Meeresun). Depending upon their equivalent Geoaccumulation Index value (Igeo = log2 (EF/1.5)), the sediments can further be classified into 7 classes, according to their level of pollution (Müller, 1979 - Umschau).