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Sci Total Environ

Title:		"Emission and profile characteristic of volatile organic compounds emitted from coke production, iron smelt, heating station and power plant in Liaoning Province, China"
Author(s):		Shi J; Deng H; Bai Z; Kong S; Wang X; Hao J; Han X; Ning P;
Address:		"Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China. Electronic address: shijianwu2000@sina.com. Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China. Chinese Research Academy of Environmental Sciences, Beijing, 100012, China. Electronic address: baizp@craes.org.cn. Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science and Technology, Nanjing 210044, China; Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science and Technology, Nanjing 210044, China. College of Environmental Science and Engineering, Nankai University, Weijin Road 94#, Tianjin, China. Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; School of Environment, Tsinghua University, Beijing 100084, China"
Journal Title:		Sci Total Environ
Year:		2015
Volume:		20150219
Issue:
Page Number:		101 - 108
DOI:		10.1016/j.scitotenv.2015.02.034
ISSN/ISBN:		1879-1026 (Electronic) 0048-9697 (Linking)
Abstract:		"107 kinds of C(2)-C(1)(2) volatile organic compound (VOC) mass concentrations and profiles for four types of coal-fired stationary sources in Liaoning Province were studied by a dilution sampling system and GC-MS analysis method, which are of significant importance with regard to VOC emissions in northeast of China. The results showed that there were some differences among these VOC source profiles. The total mass concentrations of analyzed 107 VOC species varied from 10,917 to 19,652 mug m(-3). Halogenated hydrocarbons exhibited higher mass percentages for the VOC source profiles of iron smelt (48.8%) and coke production plant (37.7%). Aromatic hydrocarbons were the most abundant in heating station plant (69.1%). Ketones, alcohols and acetates held 45.0% of total VOCs in thermal power plant. For non-methane hydrocarbons (NMHCs), which are demanded for photochemical assessment in the USA, toluene and n-hexane were the most abundant species in the iron smelt, coke production and thermal power plant, with the mass percentages of 64.8%, 52.7% and 38.6%, respectively. Trimethylbenzene, n-propylbenzene and o,m-ethyltoluene approximately accounted for 70.0% in heating station plant. NMHCs emitted from coke production, iron smelt, heating station and power plant listed above presented different chemical reactivities. The average OH loss rate of NMHCs from heating station, was 4 to 5.6 times higher than that of NMHCs from iron smelt, coke production and power plant, which implies that VOCs emitted from heating station in northeast of China should be controlled firstly to avoid photochemical ozone pollution and protect human health. There are significant variations in the ratios of benzene/toluene and m, p-xylene/ethylbenzene of these coal-fired source profiles. The representativeness of the coal-fired sources studied and the VOC samples collected should be more closely examined. The accuracy of VOC source profiles related to coal-fired processes is highly dependent on location and sampling method"
Keywords:		Air Pollutants/*analysis China *Coke *Environmental Monitoring Iron *Metallurgy Particulate Matter/analysis *Power Plants Volatile Organic Compounds/*analysis Coal-fired stationary sources Diagnostic ratios OH loss rate Source profiles Volatile organic co;
Notes:		"MedlineShi, Jianwu Deng, Hao Bai, Zhipeng Kong, Shaofei Wang, Xiuyan Hao, Jiming Han, Xinyu Ning, Ping eng Research Support, Non-U.S. Gov't Netherlands 2015/02/24 Sci Total Environ. 2015 May 15; 515-516:101-8. doi: 10.1016/j.scitotenv.2015.02.034. Epub 2015 Feb 19"