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Measuring OVOCs and VOCs by PTR-MS in an urban roadsidemicroenvironment of Hong Kong: relative humidity andtemperature dependence, and field intercomparisons
Cui,L(Cui,Long)[1]; Zhang,Z(Zhang,Zhou)[2]; Huang,Y(Huang,Yu)[3,4]; Lee,S C(Lee,Shun Cheng)[1]; Blake, D R(Blake, Donald Ray)[5]; Ho,KF (Ho,Kin Fai)[6]; Wang,B(Wang,Bei)[7]; Gao,Y(Gao.Yuan)[1,8]; Wang,XM(Wang,Xinming)[2]; Louie. KK(Louie, Kwok Keung)[9]
2016
发表期刊Atmospheric Measurement Techniques
卷号9期号:2016页码:5763-5779
文章类型期刊论文
摘要

Volatile organic compound (VOC) control is an important issue of air quality management in Hong Kong because ozone formation is generally VOC limited. Several oxygenated volatile organic compound (OVOC) and VOC measurement techniques – namely, (1) offline 2,4-dinitrophenylhydrazine (DNPH) cartridge sampling followed by high-performance liquid chromatography (HPLC) analysis; (2) online gas chromatography (GC) with flame ionization detection (FID); and (3) offline canister sampling followed by GC with mass spectrometer detection (MSD), FID, and electron capture detection (ECD) – were applied during this study. For the first time, the proton transfer reaction–mass spectrometry (PTR-MS) technique was also introduced to measured OVOCs and VOCs in an urban roadside area of Hong Kong. The integrated effect of ambient relative humidity (RH) and temperature ( T ) on formaldehyde measurements by PTR-MS was explored in this study. A Poly 2-D regression was found to be the best nonlinear surface simulation ( r   =  0.97) of the experimental reaction rate coefficient ratio, ambient RH, and T for formaldehyde measurement. This correction method was found to be better than correcting formaldehyde concentrations directly via the absolute humidity of inlet sample, based on a 2-year field sampling campaign at Mong Kok (MK) in Hong Kong. For OVOC species, formaldehyde, acetaldehyde, acetone, and MEK showed good agreements between PTR-MS and DNPH-HPLC with slopes of 1.00, 1.10, 0.76, and 0.88, respectively, and correlation coefficients of 0.79, 0.75, 0.60, and 0.93, respectively. Overall, fair agreements were found between PTR-MS and online GC-FID for benzene (slope  =  1.23, r   =  0.95), toluene (slope  =  1.01, r   =  0.96) and C 2 -benzenes (slope  =  1.02, r   =  0.96) after correcting benzene and C 2 -benzenes levels which could be affected by fragments formed from ethylbenzene. For the intercomparisons between PTR-MS and offline canister measurements by GC-MSD/FID/ECD, benzene showed good agreement, with a slope of 1.05 ( r   =  0.62), though PTR-MS had lower values for toluene and C 2 -benzenes with slopes of 0.78 ( r   =  0.96) and 0.67 ( r   =  0.92), respectively. All in all, the PTR-MS instrument is suitable for OVOC and VOC measurements in urban roadside areas.

DOI10.5194/amt-9-5763-2016
收录类别SCI
语种英语
引用统计
被引频次:36[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/5922
专题粉尘与环境研究室
作者单位1.Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University,Hung Hom, Hong Kong, China;
2.State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry,Chinese Academy of Sciences, Guangzhou, China;
3.Key Lab of Aerosol Chemistry & Physics, Institute of Earth Environment, Chinese Academy of Sciences,Xi’an, China;
4.State Key Lab of Loess and Quaternary Geology (SKLLQG), Institute of Earth Environment,Chinese Academy of Sciences, Xi’an, China;
5.Department of Chemistry, University of California, Irvine, CA, USA;
6.School of Public Health and Primary Care, The Chinese University of Hong Kong,Shatin, Hong Kong, China;
7.Faculty of Science and Technology, Technological and Higher Education Institute of Hong Kong,Hong Kong, China;
8.Department of Civil Engineering, Chu Hai College of Higher Education,New Territories, Hong Kong, China;
9.Hong Kong Environmental Protection Department, Revenue Tower, 5 Gloucester Road,Wanchai, Hong Kong, China
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Cui,L,Zhang,Z,Huang,Y,et al. Measuring OVOCs and VOCs by PTR-MS in an urban roadsidemicroenvironment of Hong Kong: relative humidity andtemperature dependence, and field intercomparisons[J]. Atmospheric Measurement Techniques,2016,9(2016):5763-5779.
APA Cui,L.,Zhang,Z.,Huang,Y.,Lee,S C.,Blake, D R.,...&Louie. KK.(2016).Measuring OVOCs and VOCs by PTR-MS in an urban roadsidemicroenvironment of Hong Kong: relative humidity andtemperature dependence, and field intercomparisons.Atmospheric Measurement Techniques,9(2016),5763-5779.
MLA Cui,L,et al."Measuring OVOCs and VOCs by PTR-MS in an urban roadsidemicroenvironment of Hong Kong: relative humidity andtemperature dependence, and field intercomparisons".Atmospheric Measurement Techniques 9.2016(2016):5763-5779.
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