Identifying causal pathways and risk-decision rules for nitrous oxide emission hot moments in wastewater treatment plants using probabilistic causal machine learning - Yangyang Guo; Anlei Wei; Shengbo Yue; Xiaofan Chang; Yifan He; Xiaodan Ji; Jirui Zou; Kangrong Tang; Zixuan Wang (Bioresource Technology, 2026)