open access
메뉴
open access
메뉴
ISSN : 1225-3480
Microplastics discharged from human daily activities are not decomposed by sewage treatment but are introduced into the oceans through land-water systems, and are accumulated in filter-feeding bivalves. This study aimed to investigate microplastic accumulation in Mytilus galloprovincialis artificially exposed to microplastics. The mussels were exposed to fluorescent microplastics made of polypropylene (diameter of 53-63 μm) for 21 days at concentrations of 50 mg/L, 0.5 μg/L, and 0 μg/L. Microplastic distribution and concentration in mussel tissues were analyzed by histology and image processing, respectively. In our study, the microplastics used were partially decomposed into nano-sized particles during the experiment. Thus, two types of micro-particles were investigated in the present study: microplastics (φ < 5 mm) and nanoplastics (φ < 20 μm). Micro/nano-sized plastics were found only in the mussels exposed to the 50 mg/L concentration; the gill, stomach, stylus sac, secondary duct, and intestine of the mussels were the organs of accumulation. Pathological symptomssuch as hemocyte infiltration and digestive tubule atrophy were found around micro/nano-sized plastics, suggesting that these particles cause physiological disorders in mussels.
Ashton, K., Holmes, L. and Turner, A. (2010) Association of metals with plastic production pellets in the marine environment. Marine Pollution Bulletin, 60:2050-2055.
Bakir, A., Rowland, S.J. and Thompson, R.C. (2014a)Transport of persistent organic pollutants by microplastics in estuarine conditions. Estuarine, Coastal and Shelf Science, 140: 14-21.
Bakir, A., Rowland, S.J. and Thompson, R.C. (2014b). Enhanced desorption of persistent organic pollutants from microplastics under simulated physiological conditions. Environmental Pollution, 185: 16-23.
CEFAS (2014) A critical review of the current evidence for the potential use of indicator species to classify UK shellfish production areas. https://www.food.gov.uk/sites/default/files/865-1-1607_FS512006_VMcFarlane.pdf
Choi, J.-S., Yun, H.-G. and Park, J.-W. (2017) Study on toxic effects of polyethylene microplastics using marine mussel Mytilus galloprovincialis. The Korean Society of Environmental Toxicology Symposium, 240-240.
Cole, M., Lindeque, P., Halsband, C. and Galloway, T.S. (2011) Microplastics as contaminants in the marine environment : A review. Marine Pollution Bulletin, 62: 2588-2597.
Lee, H.-S. and Kim, Y. (2017) Estimation of microplastics emission potential in South Korea - For primary source. Journal of Korean Society Oceanography, 22: 135-149.
Lenz, R., Enders, K. and Nielsen, T.G. (2016) Microplastic exposure studies should be environmentally realistic. PNAS, 113(29): E4121–E4122.
Masura, J., Baker, J., Foster, G. and Arthur, C. (2015)Laboratory methods for the analysis of microplastics in the marine environment: Recommendations for quantifying synthetic particles in waters and sediments. NOAA Technical Memorandum NOS-OR&R-48, pp. 39.
Paul-Pont, I., Lacroix, C., Fernandez, C.G., Hegaret, H., Lambert, C., Le Goic, N., Frere, L., Cassone, A.L., Sussarellu, R., Fabioux, C., Guyomarch, J., Albentosa, M., Huvet, A. and Soudant, P. (2016) Exposure of marine mussels Mytilus spp. to polystyrene microplastics: Toxicity and influence on fluoranthene bioaccumulation. Environmental Pollution, 216:724-737.
Sivan, A. (2011) New perspectives in plastic biodegradation. Current Opinion in Biotechnology, 22:422–426.
Wagner, M., Scherer, C., Alvarez-Munoz, D., Brennholt, N., Bourrain, X., Buchinger, S., Fries, E., Grosbois, C., Klasmeier, J., Marti, T., Rodriguez-Mozaz, S., Urbatzka, R. and Vethaak, A.D. (2014) Microplastics in freshwater ecosystems: What we know and what we need to know. Environmental Sciences Europe, 26: 12.