2021 - 2022年中国东部地区的四氯化碳排放及潜在新源探索
CCl emissions in eastern China during 2021-2022 and exploration of potential new sources.
作者信息
Li Bowei, Huang Jiahuan, Hu Xiaoyi, Zhang Lulu, Ma Mengyue, Hu Liting, Chen Di, Du Qianna, Sun Yahui, Cai Zhouxiang, Chen Ao, Li Xinhe, Feng Rui, Prinn Ronald G, Fang Xuekun
机构信息
College of Environmental & Resource Sciences, Zhejiang University, 310058, Hangzhou, Zhejiang, China.
Wuxi Ecology Environment Monitoring and Control Center, 214062, Wuxi, Jiangsu, China.
出版信息
Nat Commun. 2024 Feb 26;15(1):1725. doi: 10.1038/s41467-024-45981-x.
According to the Montreal Protocol, the production and consumption of ozone-layer-depleting CCl for dispersive applications was globally phased out by 2010, including China. However, continued CCl emissions were disclosed, with the latest CCl emissions unknown in eastern China. In the current study, based on the atmospheric measurements of ~12,000 air samples taken at two sites in eastern China, the 2021-2022 CCl emissions are quantified as 7.6 ± 1.7 gigagrams per year. This finding indicates that CCl emissions continued after being phased out for dispersive uses in 2010. Subsequently, our study identifies potential industrial sources (manufacture of general purpose machinery and manufacture of raw chemical materials, and chemical products) of CCl emissions.
根据《蒙特利尔议定书》，包括中国在内，全球于2010年逐步淘汰了用于分散用途的消耗臭氧层物质四氯化碳的生产和消费。然而，仍有四氯化碳排放被披露，中国东部地区最新的四氯化碳排放量未知。在本研究中，基于在中国东部两个地点采集的约12000个空气样本的大气测量数据，2021年至2022年四氯化碳排放量被量化为每年7.6±1.7千兆克。这一发现表明，四氯化碳在2010年被淘汰用于分散用途后仍在继续排放。随后，我们的研究确定了四氯化碳排放的潜在工业来源（通用机械制造以及基础化学原料和化学产品制造）。
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