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Source Characteristics of Volatile Organic Compounds During High Ozone Episodes in Hong Kong, Southern China : Volume 8, Issue 16 (28/08/2008)

By Zhang, J.

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Book Id: WPLBN0003984372
Format Type: PDF Article :
File Size: Pages 14
Reproduction Date: 2015

Title: Source Characteristics of Volatile Organic Compounds During High Ozone Episodes in Hong Kong, Southern China : Volume 8, Issue 16 (28/08/2008)  
Author: Zhang, J.
Volume: Vol. 8, Issue 16
Language: English
Subject: Science, Atmospheric, Chemistry
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2008
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

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Wang, T., Cardelino, C., Streets, D. G., Chameides, W. L., Blake, D. R., & Zhang, J. (2008). Source Characteristics of Volatile Organic Compounds During High Ozone Episodes in Hong Kong, Southern China : Volume 8, Issue 16 (28/08/2008). Retrieved from http://community.ebooklibrary.org/


Description
Description: School of Geography, Beijing Normal University, Beijing, China. Measurements of Volatile Organic Compounds (VOC) are analyzed to characterize the sources impacting the Hong Kong area. The ratios of different VOC species, m,p-xylenes-to-ethylbenzene, C6H14-to-toluene and p-xylene-to-total xylenes are used for diagnostic analyses. Photochemical age analysis shows that the sources of reactive aromatics, the most important contributor to the photochemical reactivity, do not appear to be preferentially located in downtown Hong Kong. In addition, they do not appear to be dominated by mobile emissions based on the analyses of speciated VOC data from an earlier study, but related to industrial, waterfront, and fuel-storage activities. The ratios, p-xylene-to-total xylenes and dSO2/dNOy, suggest that the anomalously high pollutant concentrations in western Hong Kong in the early morning hours of two episode days appear to have come from transport of urban-type emissions. Comparison of observed ambient ratios of selected VOC and their ratios in the speciated VOC emission inventories for Hong Kong and adjacent Pearl River Delta (PRD) Region gives mixed results. The observed ratio C6H14-to-toluene is consistent with the speciated version of the VOC emission inventory. The ratios of selected alkanes are not. This may be caused by the inaccuracies in the inventory and/or the speciation method.

Summary
Source characteristics of volatile organic compounds during high ozone episodes in Hong Kong, Southern China

Excerpt
Barletta, B., Meinardi, S., Simpson, I. J., Zou, S. C., Rowland, F. S., and Blake, D. R.: Ambient mixing ratios of nonmethane hydrocarbons (NMHCs) in two major urban centers of the Pearl River Delta (PRD) region: Guangzhou and Dongguan, Atmos. Environ., 42, 4393–4408, 2008.; CH2M HILL (China) Limited: Final report: agreement No. CE 106/98: Study of Air Quality in the Pearl River Delta Region, April 2002.; Cass, G. R. and McRae, G. J.: Source-receptor reconciliation of routine air monitoring data for trace metals: An emission inventory assisted approach, Environ. Sci. Technol., 17, 129–139, 1983.; Chan, C. K. and Yao, X.: Air pollution in mega cities in China – a review, Atmos. Environ., 42, 1–42, 2008.; Chameides, W. L., Fehsenfeld, F., Rodgers, M. O., Cardelino, C., Martinez, J., Parrish, J. D., Lonneman, W., Lawson, D. R., Rasmussen, R. A., Zimmerman, P., Greenberg, J., Middleton, P., and Wang, T.: Ozone precursor relationships in the ambient atmosphere, J. Geophys. Res., 97, 6037–6055, 1992.; Chan, L. Y., Chu, K. W., Zou, S. S., Chan, C. Y., Wang, X. M., Barletta, B., Blake, D. R., Guo, H., and Tsai, W. Y.: Characteristics of nonmethane hydrocarbons (NMHCs) in industrial, industrial-urban, and industrial-suburban atmospheres of the Pearl River Delta (PRD) region of south China, J. Geophys. Res., 111(D11), D11304, doi:10.1029/2005JD006481, 2006.; Chang, M. E., Hartley, D. E., Cardelino, C., and Chang, W.-L.: Inverse modeling of biogenic isoprene emissions, Geophys. Res. Lett., 23, 3007–3010, 1996.; Chang, M. E., Hartley, D. E., Cardelino, C., Haas-Lauresen, D., and Chang, W.-L.: On using inverse methods for resolving emissions with large spatial inhomogeneities, J. Geophy. Res., 102, 16 023–16 036, 1997.; Colman, J. J., Swanson, A. L., Meinardi, S., Sive, B. C., Blake, D. R., and Rowland, F. S.: Description of the analysis of a wide range of volatile organic compounds in whole air samples collected during PEM-Tropics A and B, Anal. Chem., 73, 3723–3731, 2001.; Guo, H., Lee, S. C., Louie, P. K. K., and Ho, K. F.: Characterization of hydrocarbons, halocarbons and carbonyls in the atmosphere of Hong Kong, Chemosphere, 57, 1363–1372, 2004a.; Guo, H., Wang, T., and Louie, P. K. K.: Source apportionment of ambient non-methanehydrocarbons in Hong Kong: application of a principal component analysis (PCA)/absolute principal component scores (APCS) receptor model, Environ. Pollut., 129, 489–498, 2004b.; Guo, H., Wang, T., Blake, D. R., Simpson, I. J., Kwok, Y. H., and Li, Y. S.: Regional and local contributions to ambient non-methane volatile organic compounds at a polluted rural/coatal site in Pearl River Delta, China, Atmos. Environ., 40, 2345–2359, 2006.; Guo, H., So, K. L., Simpson, I. J., Barletta, B., Meinardi, S., and Blake, D. R.: C$_1$-C$_8$ volatile organic compounds in the atmosphere of Hong Kong: Overview of atmospheric processing and source apportionment, Atmos. Environ., 41, 1456–1472, 2007.; Hartley, D. and Prinn, R.: Feasibility of determining surface emissions of trace gases using an inverse method in a three-dimensional chemical transport model, J. Geophys. Res., 98, 5183–5197, 1993.; Ho, K. F., Lee, S. C., and Chiu, G. M. Y.: Characterization of selected volatile organic compounds, polycyclic aromatic hydrocarbons and carbonyl compounds at a roadside monitoring station, Atmos. Environ., 36(1), 57–65, 2002.; Kok, G. L., Lind, J. A., and Fang, M.: An airborne study of air quality around the Hong Kong Territory, J. Geophys. Res., 102, 19 043–19 057, 1997.; Lee, S. C., Chiu, M. Y., Ho, K. F., Zou, S. C., and Wang, X. M.: Volatile organic compounds (VOCs) in urban atmosphere of Hong Kong, Chemosphere, 48(3), 375–382, 2002.; Liu, Y., Shao, M., Lu, S., Chang, C. C., Wang, J. L., and Chen, G.: Volatile organic compound (VOC) measurements in the Pearl River Delta (PRD) region, China, Atmos. Chem. Phys., 8, 1531–1545, 2008.; Mckeen, S. A. and Liu, S. C.: Hydrocarbon ratios and photochemical history of air masses, Geophys. Re

 

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