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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