Modeling study of PM2.5 pollution episode of early spring 2019 in Hokkaido, Japan caused by biomass burning in Northeast ChinaKatsushige Uranishi, Hikari Shimadera, Fumikazu Ikemori, Kyohei Takami, Atsushi Nogami and Seiji SugataE3S Web Conf., 530 (2024) 01002DOI: https://doi.org/10.1051/e3sconf/202453001002