作者
V Martins, E Ferreira da Silva, C Sequeira, F Rocha, AC Duarte
发表日期
2010/4/10
期刊
Estuarine, Coastal and Shelf Science
卷号
87
期号
2
页码范围
293-304
出版商
Academic Press
简介
Aveiro is a town with 80,000 inhabitants situated in the central west coast of Portugal. It is located at the centre of the Ria de Aveiro, a coastal lagoon that functions as a multi-estuarine area. This town is crossed by several canals which are connected with lagoon channels through canal locks. The operation of the canal locks influences the hydro dynamism in Aveiro's canal and this and other human activities have left a sedimentary record. The study of these records was based on the sediments grain size and composition, mineralogy (by XRD techniques), geochemical (by ICP-MS), total organic carbon (TOC), and microfaunal (benthic foraminifera) content in 15 grab-samples collected in 2006 in Aveiro's canal. The total elemental concentrations evaluated by total digestion of the sediment fraction <2000 μm revealed the presence of “hot spots” of pollution caused by heavy metal contaminants in some Aveiro canals …
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V Martins, EF da Silva, C Sequeira, F Rocha… - Estuarine, Coastal and Shelf Science, 2010