MOE Key Laboratory of Resources and Environmental System Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, China.
MOE Key Laboratory of Resources and Environmental System Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, China.
Environ Pollut. 2019 Apr;247:745-751. doi: 10.1016/j.envpol.2019.01.096. Epub 2019 Jan 29.
An emission inventory of carbonyl sulfide (COS) from primary anthropogenic sources in China was compiled from 2010 to 2015. The national total emission was estimated at 174 Gg S yr in 2015, with an annually average sustainable growth rate of 7.2% from 2010 to 2015. Industrial sources, biomass burning, coal combustion, agricultural sources and vehicle exhaust contributed 68.2%, 22.0%, 6.1%, 2.2%, and 1.5%, respectively, of total COS emissions in 2015. Aluminum production, carbon black production, titania production, coke production, pulp and paper industry, were the main industrial sources of COS, with the emission about 118 Gg S yr COS in 2015, accounting for 98.5% of total direct emissions from the Chinese industry. The distribution of COS emissions in China showed significant differences at the provincial level. In Shandong and Xinjiang province, they were much bigger than other provinces, with total emissions of 31 and 15 Gg S yr, respectively. Uncertainty analysis of COS emission inventories showed that the emission range was 70-267 Gg S yr at a 95% confidence interval. In this study, COS emissions in China were much higher than prior underestimated estimations, even for Asian and global emissions, which could be resolved part of missing sources in the global COS budget.
中国主要人为源羰基硫 (COS) 排放清单编制于 2010 年至 2015 年。2015 年中国的国家总排放量估计为 174 Gg S yr，2010 年至 2015 年的年平均可持续增长率为 7.2%。工业源、生物质燃烧、煤炭燃烧、农业源和机动车尾气分别占 2015 年总 COS 排放量的 68.2%、22.0%、6.1%、2.2%和 1.5%。2015 年，铝生产、炭黑生产、钛白粉生产、焦炭生产、纸浆和造纸业是 COS 的主要工业源，排放量约为 118 Gg S yr COS，占中国工业直接排放总量的 98.5%。中国 COS 排放的分布在省级水平上存在显著差异。在山东和新疆，它们的排放量远高于其他省份，分别为 31 和 15 Gg S yr。COS 排放清单的不确定性分析表明，排放范围在 95%置信区间内为 70-267 Gg S yr。本研究表明，中国的 COS 排放量远高于先前低估的估计值，即使是在亚洲和全球排放方面，这也可以部分解决全球 COS 预算中缺失的来源问题。
