Evaluating Hangzhou's urgent source-specific regulatory policies for the 2024 New Year haze: A receptor model and machine learning approach. - Liang, Weizhao; Li, Yuan; Liu, Xuan; Yan, Renchang; Zhu, Wubin; Li, Yunshan; Shen, Jiandong; Bi, Xiaohui; Zhang, Yufen; Dai, Qili; Feng, Yinchang (Journal of Environmental Sciences (Elsevier), 2026)