Chinese vehicle emissions characteristic testing with small sample size:   Results and comparison

doi:10.1016/j.apr.2016.08.007

CORC > 北京大学 > 环境科学与工程学院

	Chinese vehicle emissions characteristic testing with small sample size: Results and comparison
	Cai, Tianqi ; Zhang, Yang ; Fang, Dongqing ; Shang, Jing ; Zhang, Yuanxun ; Zhang, Yuanhang
刊名	ATMOSPHERIC POLLUTION RESEARCH
	2017
关键词	Mobile source Particulate organic matter Emission characteristics Chassis dynamometer test Motorcycle AIR-POLLUTION SOURCES POLYCYCLIC AROMATIC-HYDROCARBONS FINE ORGANIC AEROSOL DUTY DIESEL TRUCKS SOURCE APPORTIONMENT PARTICULATE MATTER SOURCE PROFILES PM2.5 EXHAUST ATMOSPHERE
DOI	10.1016/j.apr.2016.08.007
英文摘要	Mobile emissions represent a main source of fine particulate matter (PM2.5) in China, however, few studies have tested the mobile source profiles of Chinese vehicles due to the high cost. In this study, the exhaust emissions of 21 Chinese vehicles, which were divided into five groups according to weight and fuel type, were sampled using the chassis dynamometeredilution tunnel method. PM2.5 mass, organic carbon (OC), elemental carbon (EC) and 190 compounds of organic matter were measured to compare emission characteristics with published mobile profiles. In this study, PM2.5 emission factors are higher for high mileage vehicles than new vehicles (255 and 115 mg/km). Among all vehicle emissions, OC averaged 55.4 +/- 15.5% of PM2.5 mass while quantified organic carbon (QOC) averaged 4.5 +/- 3.0% of PM2.5 mass. N-alkanes were the predominant species within QOC, averaging 57.0 +/- 22.1% of QOCby mass. Normal-aliphatic acids, which are products of catalysis, were observed in the highest concentrations in light-duty gasoline cars. Concentrations of polycyclic aromatic hydrocarbons with more than five rings (large PAHs) differed between gasoline and diesel vehicles, suggesting that large PAHs like benzo[ghi] perylene and coronene could be used to distinguish between fuel types. Hopanes and steranes made up a relatively small fraction of QOC compared with other species (1.1%-16.7% of the total QOC mass) but the relative concentrations of hopanes were similar among different vehicle types. The observed emission characteristics in this study are comparable with a US mobile source profiles published by Lough et al. (2007). Copyright (C) 2016 Turkish National Committee for Air Pollution Research and Control. Production and hosting by Elsevier B.V. All rights reserved.; National Science Foundation of PR China (NSFC) [91543122]; Public Welfare Project Supported by China's Ministry of Environmental Protection [201509062]; SCI(E); ARTICLE; 1; 154-163; 8
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/476153]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Cai, Tianqi,Zhang, Yang,Fang, Dongqing,et al. Chinese vehicle emissions characteristic testing with small sample size: Results and comparison[J]. ATMOSPHERIC POLLUTION RESEARCH,2017.
APA	Cai, Tianqi,Zhang, Yang,Fang, Dongqing,Shang, Jing,Zhang, Yuanxun,&Zhang, Yuanhang.(2017).Chinese vehicle emissions characteristic testing with small sample size: Results and comparison.ATMOSPHERIC POLLUTION RESEARCH.
MLA	Cai, Tianqi,et al."Chinese vehicle emissions characteristic testing with small sample size: Results and comparison".ATMOSPHERIC POLLUTION RESEARCH (2017).