Measurement and analysis of the air quality within a high-speed train carriage in a region of Southwest ChinaSongtao Hu, Weihao Zhao, Changpeng Han, Ke Yi, Shiwen Chen and Jinfu ZhengE3S Web of Conf., 512 (2024) 03016DOI: https://doi.org/10.1051/e3sconf/202451203016