Abstract
Significant dust storm impacts have seldom been recorded and reported in Hong Kong. Herein, four cases which occurred in Hong Kong during the spring times of recent years are examined using back-trajectory computation and chemical analysis of air-borne samples. All of the cases show that the dust was transported from the source to Hong Kong in 2–5 days and that PM10 concentrations approached or exceeded the European Union air quality criteria and the USA National Ambient Air Quality Standard. The chemical characteristics of the samples taken in these events agreed both with those from the source regions and with those archived from selected Hong Kong datasets. The concentrations of the crustal constituents (Al, Fe, Mn, Ca) of the Hong Kong samples on the episode days were at least three times higher than the concentrations measured on non-episode days. The mass ratios of Fe/Al and Mn/Al (but not Ca/Al) can act as good tracers of Asian dust storms to this coastal site where sea-salt and other anthropogenic species are normally dominant. Furthermore, unusually high Mg levels indicated a mainly crustal origin for this element, rather than the marine origin normally found at this coastal location. Particulate nitrate exhibited more elevated concentrations in all of the dust storm samples than in non-dust-storm and local samples.
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Choi, J. C., Lee, M., Chun, Y., Kim, J. and Oh, S.: 2001, ‘Chemical composition and source signature of spring aerosol in Seoul, Korea’, J. Geophys. Res. 106, 18067–18074.
Djupstrom, M. and Pacyna, J. M.: 1993, ‘Contamination of Arctic air at three sites during haze event in late winter 1986’, Atmos. Environ. 27, 2999–3010.
Draxler, R. R. and Rolph, G. D.: 2003. HYSPLIT (HYbrid Single-Particle Lagrangian Integrated Trajectory) Model access via NOAA ARL READY Website (http://www.arl.noaa.gov/ready/hysplit4.html), NOAA Air Resources Laboratory, Silver Spring, MD.
Duce, R. A., Unni, C. K., Ray B. J., et al.: 1980, ‘Long-range atmospheric transport of soil dust from Asia to the Tropical North Pacific – temporal variability’, Science 209, 1522–1524.
Fang, G. C., Chang, C. N., Wu, Y. S., et al.: 2002, ‘Concentration of atmospheric particulates during a dust storm period in central Taiwan, Taichung’, Sci. Tot. Environ. 287, 141–145.
Fang, M., Zheng, M., Wang, F., et al.: 1999, ‘The long-range transport of aerosols from northern China to Hong Kong – a multi-technique study’, Atmos. Environ. 33, 1803–1817.
Gillette, D. A., Adams, J., Endo, A., Smith, D. and Kihl, R.: 1980, ‘Threshold velocities for input of soil particles into the air by desert soils’, J. Geophys. Res. 85, 5621–5630.
HKEPD: 1999. Air Quality in Hong Kong 1999, Air Services Group, Hong Kong Government Printer.
Husar, R. B., Tratt, D. M., Schichtel, B. A., et al.: 2001, ‘Asian dust events of April 1998’, J. Geophys. Res. 106, 18317–18330.
In, H. J. and Park, S. U.: 2002, ‘A simulation of long-range transport of yellow sand observed in April 1998 in Korea’, Atmos. Environ. 36, 4173–4187.
Kanayama, S., Yabuki, S., Yanagisawa, F., et al.: 2002, ‘The chemical and strontium isotope composition of atmospheric aerosols over Japan: The contribution of long-range-transported Asian dust (Kosa)’, Atmos. Environ. 36, 5159–5175.
Lee, Y. C. and Hills, P. R.: 2003, ‘Cool season pollution episodes in Hong Kong’, Atmos. Environ. 37, 2927–2939.
McKendry, I. G., Hacker, J. P., Stull, R., Sakiyama, S., Mignacca, D. and Reid, K.: 2001, ‘Long-range transport of Asian dust to the Lower Fraser Valley, British Columbia, Canada’, J. Geophys. Res. 106, 18361–18370.
Mason, B. H.: 1966. Principles of Geochemistry, New York, Wiley.
Nishikawa, M., Kanamori, S., Kanamori, N. and Mizogushi, T.: 1991, ‘Kosa aerosol as Eolian carrier of anthropogenic material’, Sci. Tot. Environ. 107, 13–27.
Raes, F., Van Dingenen, R., Vignati, E., Wilson, J., Putaud, J.P., Seinfeld, J. H. and Adams, P.: 2000, ‘Formation and cycling of aerosols in the global troposphere’, Atmos. Environ. 34, 4215–4240.
Ro, C. U., Hwang, H., Kim, H., Chun, Y. and Van Grieken, R.: 2005, ‘Single-particle characterization of four “Asian Dust” samples collected in Korea, using low-Z particle electron probe X-ray microanalysis’, Environ. Sci. Tech. 39, 1409–1419.
Rolph, G. D.: 2003, ‘Real-time Environmental Applications and Display System (READY)’, Website (http://www.arl.noaa.gov/ready/hysplit4.html), NOAA Air Resources Laboratory, Silver Spring, MD.
Song, C. H. and Carmichael, G. R.: 2001, ‘A three-dimensional modeling investigation of the evolution processes of dust and sea-salt particles in east Asia’, J. Geophys. Res. 106, 18131–18154.
Zhang, J., Wu, Y., Liu, C. L., et al.: 2001, ‘Aerosol characters from the desert region of Northwest China and the Yellow Sea in spring and summer: Observations at Minqin, Qingdao, and Qianliyan in 1995–1996’, Atmos. Environ. 35, 5007–5018.
Zhang, X. Y., Arimoto, R. and An, Z. S.: 1997, ‘Dust emission from Chinese desert sources linked to variations in atmospheric circulation’, J. Geophys. Res. 102, 28041–28047.
Zhang, X. Y., Arimoto, R., Zhu, G.H., et al.: 1998, ‘Concentration, size-distribution and deposition of mineral aerosol over Chinese desert regions’, Tellus B50, 317–330.
Zhou, M., Okada, K., Qian, F., et al.: 1996, ‘Characteristics of dust-storm particles and their long-range transport from China to Japan – Case studies in April 1993’, Atmos. Res. 40, 19–31.
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Wai, K.M., Tanner, P.A. Case studies of Asian dust storm impacts on a coastal site: implication of a good dust storm tracer. Water Air Soil Pollut 168, 59–70 (2005). https://doi.org/10.1007/s11270-005-0611-4
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DOI: https://doi.org/10.1007/s11270-005-0611-4