气候变化领域集成服务门户(CCPortal): Verification of anthropogenic VOC emission inventory through ambient measurements and satellite retrievals

CCPortal

DOI	10.5194/acp-19-5905-2019
	Verification of anthropogenic VOC emission inventory through ambient measurements and satellite retrievals
	Li J.; Hao Y.; Simayi M.; Shi Y.; Xi Z.; Xie S.
发表日期	2019
ISSN	16807316
起始页码	5905
结束页码	5921
卷号	19 期号:9
英文摘要	Improving the accuracy of the anthropogenic volatile organic compound (VOC) emission inventory is essential for reducing air pollution. In this study, we established an emission inventory of anthropogenic VOCs in the Beijing-Tianjin-Hebei (BTH) region of China for 2015 based on the emission factor (EF) method. Online ambient VOC observations were conducted in one urban area of Beijing in January, April, July, and October, which, respectively, represented winter, spring, summer, and autumn in 2015. Furthermore, the developed emission inventory was evaluated by a comprehensive verification system based on the measurements and satellite retrieval results. Firstly, emissions of the individual species of the emission inventory were evaluated according to the ambient measurements and emission ratios versus carbon monoxide (CO). Secondly, the source structure of the emission inventory was evaluated using source appointment with the Positive Matrix Factorization (PMF) model. Thirdly, the spatial and temporal distribution of the developed emission inventory was evaluated by a satellite-derived emission inventory. According to the results of the emission inventory, the total anthropogenic VOC emissions in the BTH region were 3277.66 Gg in 2015. Online measurements showed that the average mixing ratio of VOCs in Beijing was approximately 49.94 ppbv in 2015, ranging from 10.67 to 245.54 ppbv. The annual emissions for 51 of 56 kinds of non-methane hydrocarbon species derived from the measurements agreed within ±100 % with the results of the emission inventory. Based on the PMF results and the emission inventory, it is evident that vehicle-related emissions dominate the composition of anthropogenic VOCs in Beijing. The spatial correlation between the emission inventory and satellite inversion result was significant (p<0.01) with a correlation coefficient of 0.75. However, there were discrepancies between the relative contributions of fuel combustion, emissions of oxygenated VOCs (OVOCs), and halocarbons from the measurements and inventory. To obtain a more accurate emission inventory, we propose the investigation of the household coal consumption, the adjustment of EFs based on the latest pollution control policies, and the verification of the source profiles of OVOCs and halocarbons. © Author(s) 2019. This work is distributed under the Creative Commons Attribution 4.0 License.
语种	英语
scopus关键词	ambient air; anthropogenic source; atmospheric pollution; carbon emission; concentration (composition); emission inventory; seasonal variation; volatile organic compound; Beijing [Beijing (ADS)]; Beijing [China]; China; Hebei; Tianjin
来源期刊	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/144439
作者单位	College of Environmental Sciences and Engineering, State Key Joint Laboratory of Environmental Simulation and Pollution Control, Peking University, Beijing, 100871, China; Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA 02215, United States
推荐引用方式 GB/T 7714	Li J.,Hao Y.,Simayi M.,et al. Verification of anthropogenic VOC emission inventory through ambient measurements and satellite retrievals[J],2019,19(9).
APA	Li J.,Hao Y.,Simayi M.,Shi Y.,Xi Z.,&Xie S..(2019).Verification of anthropogenic VOC emission inventory through ambient measurements and satellite retrievals.Atmospheric Chemistry and Physics,19(9).
MLA	Li J.,et al."Verification of anthropogenic VOC emission inventory through ambient measurements and satellite retrievals".Atmospheric Chemistry and Physics 19.9(2019).