« Previous Abstract"Process-specific emission characteristics of volatile organic compounds (VOCs) from petrochemical facilities in the Yangtze River Delta, China"    Next Abstract"Volatile organic compound (VOC) emissions and health risk assessment in paint and coatings industry in the Yangtze River Delta, China" »

Sci Rep

Title:		"Species-specified VOC emissions derived from a gridded study in the Pearl River Delta, China"
Author(s):		Mo Z; Shao M; Liu Y; Xiang Y; Wang M; Lu S; Ou J; Zheng J; Li M; Zhang Q; Wang X; Zhong L;
Address:		"State Joint Key Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China. Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China. State Joint Key Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China. mshao@pku.edu.cn. Institute for Environmental and Climate Research, Jinan University, Guangzhou, 511443, China. mshao@pku.edu.cn. State Joint Key Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China. yingliu@pku.edu.cn. Beijing Innovation Center for Engineering Science and Advanced Technology (BIC-ESAT), Peking University, Beijing, 100871, China. yingliu@pku.edu.cn. Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing University of Information Science & Technology, Nanjing, 210044, China. School of International Development, University of East Anglia, Norwich, NR4 7TJ, United Kingdom. Institute for Environmental and Climate Research, Jinan University, Guangzhou, 511443, China. School of Energy and Environment, South China University of Technology, Guangzhou, 510006, China. Ministry of Education Key Laboratory for Earth System Modeling, Center for Earth System Science, Tsinghua University, Beijing, 100871, China. School of Atmospheric Sciences, Sun Yat-Sen University, Guangzhou, 510275, China"
Journal Title:		Sci Rep
Year:		2018
Volume:		20180214
Issue:		1
Page Number:		2963 -
DOI:		10.1038/s41598-018-21296-y
ISSN/ISBN:		2045-2322 (Electronic) 2045-2322 (Linking)
Abstract:		"This study provides a top-down approach to establish an emission inventory of volatile organic compounds (VOC) based on ambient measurements, by combining the box model and positive matrix factorization (PMF) model. Species-specified VOC emissions, source contributions, and spatial distributions are determined based on regional-scale gridded measurements between September 2008 to December 2009 in the Pearl River Delta (PRD), China. The most prevalent anthropogenic species in the PRD was toluene estimated by the box model to be annual emissions of 167.8 +/- 100.5 Gg, followed by m,p-xylene (68.0 +/- 45.0 Gg), i-pentane (49.2 +/- 40.0 Gg), ethene (47.6 +/- 27.6 Gg), n-butane (47.5 +/- 40.7 Gg), and benzene (46.8 +/- 29.0 Gg). Alkanes such as propane, i-butane, and n-pentane were 2-8 times higher in box model than emission inventories (EI). Species with fewer emissions were highly variable between EI and box model results. Hotspots of VOC emissions were identified in southwestern PRD and port areas, which were not reflected by bottom-up EI. This suggests more research is needed for VOC emissions in the EI, especially for fuel evaporation, industrial operations and marine vessels. The species-specified top-down method can help improve the quality of these emission inventories"
Keywords:
Notes:		"PubMed-not-MEDLINEMo, Ziwei Shao, Min Liu, Ying Xiang, Yang Wang, Ming Lu, Sihua Ou, Jiamin Zheng, Junyu Li, Meng Zhang, Qiang Wang, Xuemei Zhong, Liuju eng Research Support, Non-U.S. Gov't England 2018/02/16 Sci Rep. 2018 Feb 14; 8(1):2963. doi: 10.1038/s41598-018-21296-y"