Research on a multi-scale emission factor dataset constructing methodDaoyuan Yang, Rui Wu, Xinyu Zhang, Yu Liu, Hanzhengnan Yu, Xianpan An, Kunqi Ma, Yongkai Liang, Hang Xu and Hao ZhangE3S Web of Conf., 536 (2024) 03014DOI: https://doi.org/10.1051/e3sconf/202453603014