Atmospheric Chemistry and Physics Discussions www.atmos-chem-phys-discuss.net 1680-7367 1680-7375 9 2 2009 10.5194/acpd-9-9747-2009 http://www.atmos-chem-phys-discuss.net/9/9747/2009/ http://www.atmos-chem-phys-discuss.net/9/9747/2009/acpd-9-9747-2009.html http://www.atmos-chem-phys-discuss.net/9/9747/2009/acpd-9-9747-2009.pdf 9747 9791 2009-04-16 Concurrent observations of air pollutants at two sites in the Pearl River Delta and the implication of regional transport H. Guo ceguohai@polyu.edu.hk F. Jiang H. R. Cheng I. J. Simpson X. M. Wang A. J. Ding T. J. Wang S. M. Saunders T. Wang S. H. M. Lam D. R. Blake Y. L. Zhang Air Quality Studies, Department of Civil and Structural Engineering, The Hong Kong Polytechnic University, Hong Kong Department of Atmospheric Sciences, Nanjing University, Nanjing, China Department of Chemistry, University of California at Irvine, California, USA Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, China School of Biomedical, Biomolecular and Chemical Sciences, University of Western Australia, Perth, Australia An intensive field measurement study was conducted simultaneously at a site within the inland Pearl River Delta (PRD) region (WQS) and a site in Hong Kong (TC) between 22 October and 1 December 2007. Ambient air pollutants measured included O₃, NO_x, CO, SO₂, NMHCs, and carbonyls. The purpose is to improve our understanding of the interplay among local and regional air pollutants in the Hong Kong area, and the influence of regional transport on local air pollutants. 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