title: Studies of channel sediments contaminated with organics and heavy metals.
abstract: The paper discusses the geo-environmental studies carried out to revitalise a silted up channel in Guanabara Bay. A dredging operation has been planned to remove about 1.5 million cubic meters of contaminated sediment. Investigations were performed to characterise the sediment in terms of its physical and chemical properties and to evaluate the presence of heavy metals and organic compounds, particularly polycyclic aromatic hydrocarbons PAH. Finally, dredging and disposal schemes are briefly outlined based on measured contamination levels.
authors.affiliation: Civil Engineering Program, COPPE-Graduate School of Engineering, Federal University of Rio de Janeiro, P.O. Box 68506, 21945-970 Rio de Janeiro, Brazil.
authors.forename: Maria Claudia
authors.initials: MC
authors.lastname: Barbosa
authors.forename: Márcio de Souza Soares
authors.initials: Mde S
authors.lastname: de Almeida
authors.forename: Digna Faria
authors.initials: DF
authors.lastname: Mariz
authors.forename: José Luis Duarte Silva Serzedelo
authors.initials: JL
authors.lastname: de Almeida
mesh_terms: D001938:Brazil; D004784:Environmental Monitoring / Q000379:methods; D019015:Geologic Sediments / Q000032:analysis*; D019216:Metals, Heavy / Q000032:analysis*; D009930:Organic Chemicals / Q000032:analysis*; D012037:Refuse Disposal / Q000379:methods; D012623:Seawater / Q000737:chemistry*; D014872:Water Movements; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014877:Water Pollution, Chemical / Q000032:analysis
chemical_list: D019216:Metals, Heavy; D009930:Organic Chemicals; D014874:Water Pollutants, Chemical