Field Survey of Indoor Microplastic in Four Regions of JapanEunsu Lim, Yifan Bai, Yuan Ni, Jinya Takeuchi, Takeshi Ogasawra, Akihisa Takemura, Hoon Kim and Kazuhide ItoE3S Web of Conf., 396 (2023) 01120DOI: https://doi.org/10.1051/e3sconf/202339601120