Wu LiLing, Sun Shida, Zhang Gaige, Jia Zimu, Liu Yuyun, Xu Chenxi, Guo Mengjie, Zhang Luyao, Cai Cilan, Zhang Runcao, Zheng Jialin, He Wenjie, Peng Lin, Bo Yu, He Kebin
State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China.
Ministry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, Beijing 100084, China.
Sci Total Environ. 2024 Nov 15;951:175342. doi: 10.1016/j.scitotenv.2024.175342. Epub 2024 Aug 6.
Synergistic reduction of air pollutants and carbon dioxide (CO) emissions is currently a key environmental policy in China, yet provincial-level studies remain scarce. To fill the gap, this study developed a coupled emission inventory from 2013 to 2020 in Shanxi, a coal-dependent province critical to China's energy security. This facilitated the investigation of emission trends, primary sources, synergistic effects, and spatial distribution. The results show that, while air pollutant emissions decreased significantly during the study period, CO emissions increased slightly. The main emitters of SO, NO, and CO were identified as power, heating, industrial boilers, and residential coal combustion. The iron and steel industry contributed significantly to PM emissions, coke production to VOCs, and vehicles to NO and VOCs. NH emissions were mainly attributed to fertilizer use and livestock. Synergistic reductions were evident in coal-related sources, especially industrial boilers and residential coal combustion, underlining the importance of optimizing the energy structure. Anthropogenic emissions were concentrated in basins with poor dispersion conditions. Taiyuan, Yuncheng, and Linfen emerged as key areas for synergistic reduction efforts. This study provides important insights for environmental policy development in Shanxi and other coal-dependent regions.
协同减少空气污染物和二氧化碳（CO）排放目前是中国的一项关键环境政策，但省级层面的研究仍然匮乏。为填补这一空白，本研究编制了2013年至2020年山西省的耦合排放清单，山西省是对中国能源安全至关重要的煤炭依赖型省份。这有助于调查排放趋势、主要来源、协同效应和空间分布。结果表明，在研究期间，虽然空气污染物排放显著下降，但CO排放略有增加。SO、NO和CO的主要排放源被确定为电力、供暖、工业锅炉和居民燃煤。钢铁行业对PM排放贡献显著，焦炭生产对VOCs排放贡献显著，车辆对NO和VOCs排放贡献显著。NH排放主要归因于化肥使用和牲畜养殖。与煤炭相关的源，特别是工业锅炉和居民燃煤，出现了明显的协同减排，突出了优化能源结构的重要性。人为排放集中在扩散条件较差的盆地。太原、运城和临汾成为协同减排努力的关键地区。本研究为山西省和其他煤炭依赖型地区的环境政策制定提供了重要见解。
