A study of marine pollution caused by the release of metals into seawater following acid spills

Autor: Stéphane Le Floch, Philippe Giamarchi, Jean-Yves Cabon
Přispěvatelé: Chimie, Electrochimie Moléculaires et Chimie Analytique (CEMCA), Institut Brestois Santé Agro Matière (IBSAM), Université de Brest (UBO)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), Centre de documentation de recherche et d'expérimentations sur les pollutions accidentelles des eaux (Cedre), Cedre
Rok vydání: 2010
Předmět:
Pollution
Geologic Sediments
Time Factors
Chemical Hazard Release
media_common.quotation_subject
chemistry.chemical_element
Manganese
Zinc
010501 environmental sciences
Aquatic Science
Oceanography
MESH: Acids
01 natural sciences
Disasters
Metal
Chromium
[CHIM]Chemical Sciences
Seawater
14. Life underwater
MESH: Disasters
Water pollution
0105 earth and related environmental sciences
media_common
[SDV.EE]Life Sciences [q-bio]/Ecology
environment
MESH: Metals
Water Pollution
MESH: Time Factors
010401 analytical chemistry
Environmental engineering
MESH: Seawater
Sediment
MESH: Geologic Sediments
6. Clean water
MESH: Chemical Hazard Release
0104 chemical sciences
MESH: France
MESH: Water Pollutants
Chemical
chemistry
Metals
MESH: Water Pollution
13. Climate action
visual_art
Environmental chemistry
visual_art.visual_art_medium
France
Acids
Water Pollutants
Chemical
Zdroj: Marine Pollution Bulletin
Marine Pollution Bulletin, Elsevier, 2010, 60 (7), pp.998-1004. ⟨10.1016/j.marpolbul.2010.02.002⟩
ISSN: 0025-326X
DOI: 10.1016/j.marpolbul.2010.02.002
Popis: International audience; This study examined the potential metal pollution induced by the accidental spill of different acids into seawater. The acids sink to the bottom according to their densities and subsequently react with marine sediments. The acids selected for this study were acetic, hydrochloric, nitric, sulfuric, and phosphoric acids; the metallic elements selected were Cr, Cu, Fe, Mn, Pb and Zn. The sediment was collected in Brest Harbour. The percentages of metals released from this sediment in the presence of various concentrations of acids in seawater were important; concentrations of approximately 7 mg L(-1) for Mn and 60 mg L(-1) for Zn were observed under our experimental conditions. We also examined the rate of release of these metals from the sediment into the seawater in the presence of the different acids and under different experimental conditions. We found that most of the metallic elements were released from the sediments into the seawater during the first fifteen minutes of exposure. After this time, a high degree of pollution was induced if acids leached into seawater were not rapidly diluted.
Databáze: OpenAIRE
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