1. 1) Isobe, A. and Iwasaki, S. : The fate of ocean plastics: Are they just a marine environmental problem?, Science of the Total Environment, 825, 15935, 2022.
2. 2) Thompson, R. C., Olsen, Y., Mitchell, R. P., Davis, A., Rowland, S. J., John, A. W. G., McGonigle, D. and Russell, A. E. : Lost at sea: where is all the plastic?, Science, 304, pp. 838, 2004.
3. 3) Peng, X., Chen, M., Chen, S., Dasgupta, S., Xu, H., Ta, K., Du, M., Li, J., Guo, Z. and Bai, S. : Microplastics contaminate the deepest part of the world’s ocean, Geochemical Perspectives Letters, 9, pp. 1-5, 2018.
4. 4) 高田秀重：化学物質汚染と物質循環の視点から見たプラスチック問題, 環境情報科学, 48巻 3号, pp. 12-16, 2019. [Takada, H.: Reduction of single-use plastics is first priority considering hazardous chemicals in plastics and view of global material cycles, Environmental information science, Vol. 48, Issue 3, pp. 12-16, 2019.]
5. 5) Masura, J., Baker, J., Foster, G., Arthur, C., Herring, C. and Technical Editor : Laboratory methods for the analysis of microplastics in the marine environment: recommendations for quantifying synthetic particles in waters and sediments, NOAATechnical Memorandum NOS-OR&R-48, 2015.