Fiche détaillée Master
| Mémoire N° | 240 |
| Auteur | LIEBICH Caroline |
| Titre | Microplastic Abundance in Coastal Marine Environments of Hong Kong |
| Thématique & formation | Licenciée en Relations Internationales et Sciences Politiques - Sciences de l'Eau |
| Résumé | Hong Kong is located in the world’s most populated region, in an area where marine pollution guidelines do not address the problems associated with microplastics. Various sources of pollution remain to this day uncontrolled and lack governmental supervision and policy enforcement. The lack of policy enforcement in this area is due to the fact that there is insufficient supporting evidence from a scientific perspective. The presence of plastic waste with a diameter of less than 5 mm (“microplastics”) in marine environments has prompted increasing concern in recent years, both locally and globally. We conducted seasonal surveys of microplastic pollution in the surface waters and sediments from Deep Bay, Tolo Harbor, Tsing Yi, and Victoria Harbor in Hong Kong between June 2015 and March 2016. The average concentrations of microplastics in local coastal waters and sediments respectively ranged from 51 to 27’909 particles per 100 m3 and 49 to 279 particles per kilogram. Microplastics of different shapes (mainly fragments, lines, fibers, and pellets) were identified as polypropylene, low-density polyethylene, high-density polyethylene, a blend of polypropylene and ethylene propylene, and styrene acrylonitrile by means of Attenuated Total Reflectance - Fourier Transform Infrared Spectroscopy. This is the first comprehensive study to assess the spatial and temporal variations of microplastic pollution in Hong Kong coastal regions. |
| Summary | Hong Kong is located in the world’s most populated region, in an area where marine pollution guidelines do not address the problems associated with microplastics. Various sources of pollution remain to this day uncontrolled and lack governmental supervision and policy enforcement. The lack of policy enforcement in this area is due to the fact that there is insufficient supporting evidence from a scientific perspective. The presence of plastic waste with a diameter of less than 5 mm (“microplastics”) in marine environments has prompted increasing concern in recent years, both locally and globally. We conducted seasonal surveys of microplastic pollution in the surface waters and sediments from Deep Bay, Tolo Harbor, Tsing Yi, and Victoria Harbor in Hong Kong between June 2015 and March 2016. The average concentrations of microplastics in local coastal waters and sediments respectively ranged from 51 to 27’909 particles per 100 m3 and 49 to 279 particles per kilogram. Microplastics of different shapes (mainly fragments, lines, fibers, and pellets) were identified as polypropylene, low-density polyethylene, high-density polyethylene, a blend of polypropylene and ethylene propylene, and styrene acrylonitrile by means of Attenuated Total Reflectance - Fourier Transform Infrared Spectroscopy. This is the first comprehensive study to assess the spatial and temporal variations of microplastic pollution in Hong Kong coastal regions. |
| Volée | 2013 |
| Date et heure soutenance | 13-10-2016 16:30 |
| Salle soutenance | B2B |
| Collation | 79 pages; 23 figures |
| Remarque | Echange universitaire avec la Chinese University of Hong Kong (CUHK) |
| Mot-clés | Plastic pollution; Coastal Waters; Microplastics, Marine, Sediments; Temporal Variation; Spatial Variation, China, Hong Kong. |
| Cote bibliothèque | |
| Stage organisme | |
| Maître de stage | |
| Projet recherche | |
| Bourse | Bourse mobilité et la bourse Schmidheiny |
| Terrain d'étude ou d'application | Pollution marine des microplastiques |
| Documents associés |
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| Dernière mise à jour |
2025-02-27 15:07:51 |