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The Characteristics of the Aerosol Number Concentration in Jeju Area During Asian Dust Events

황사 시 제주지역 에어로졸의 수농도 특성

Kang, Chang-Hee;Hu, Chul-Goo
강창희;허철구

  • Received : 2012.12.20
  • Accepted : 2013.02.07
  • Published : 2013.03.29

Abstract

The aerosol number concentration have measured with an aerodynamic particle sizer spectrometer(APS) at Gosan in Jeju Island, which is known as background area in Korea, from March 2010 to February 2011. The obtained results of asian dust events and non-asian dust period have been compared. The results show that the entire averaged aerosol number concentration from APS measurement during asian dust events and non-asian dust period are about 341 particles/$cm^3$ and 240 particles/$cm^3$, respectively. During asian dust events, the number concentration in small size ranges(${\leq}0.4{\mu}m$) are similar to non-asian dust period, however, those in large size ranges(${\geq}0.7{\mu}m$) are very higher than non-asian dust period. The contributions of the size resolved number concentration(23 channel in $0.25{\sim}10.0{\mu}m$) to total number concentration in that range are dramatically decreased with increased particle size. The contributions of smaller size ranges(${\leq}0.4{\mu}m$) during asian dust events are very low compared with non-asian dust period, on the other hand, those of larger size ranges(${\geq}0.4{\mu}m$) are higher than non-asian dust period. The number concentration in each size range are strongly correlated with the concentration in adjacent size range. And the total aerosol number concentration are depended on the number concentration in range of smaller than $0.58{\mu}m$ during non-asian dust period and asian dust events. On the other hand, $PM_{10}$ mass concentration has mainly affected with the number concentration in range of smaller than $1.0{\mu}m$ during non-asian dust period, however, during asian dust events, the mass concentration has mainly affected with the number concentration in range of $0.65{\sim}3.0{\mu}m$.

Keywords

Aerosol;Number concentration;Asian Dust;Size distribution;Jeju area

References

  1. Bigi, A. B., Ghermandi, G., 2011, Particle number size distribution and weight concentration of background urban aerosol in a Po Valley site, Water Air Soil Pollut., 220, 265-278. https://doi.org/10.1007/s11270-011-0752-6
  2. Buzorius, G., Hämeri, K., Pekkanen, J., Kulmala, M., 1999, Spatial variation of aerosol number concentration in helsinki city, Atmos. Environ., 33, 553-565. https://doi.org/10.1016/S1352-2310(98)00287-8
  3. Choi, B. C., Iwasaka, Y., Lim, J. C., Jeong, S. B., Kim, Y. S., Dmitri, T., Nagatani, T., Yamada, M., Kim, S. B., Hong, G. M., Lee, Y. G., Yoo, H. J., 2005, Features on the vertical size distribution of aerosols using ballon-borne optical particle counter at Anmyon, J. of Atmosphere, KMS, 15(3), 149-153.
  4. Chun, Y. S., Kim, J. Y., Choi, J. C., Shin, D. S., 1999, The characteristics of the aerosol number concentration observed in Seoul and Anmyondo during an yellow sand phenomenon, J. of Korean Atmos. Environ., 15(5), 575-586.
  5. Chun, Y. S., Kim, J. Y., Choi, J. C., Boo, K. O., Oh, S. N., Lee, M. H., 2001, Characteristic number size distribution of aerosol during Asian dust period in Korea, Atmos. Environ., 35, 2715-2721. https://doi.org/10.1016/S1352-2310(00)00404-0
  6. Jung, C. H., Cho, Y. S., Lee, J. T., 2005, Characteristics of Incheon aerosol during asian dust period in 2004 using optical particle counter(OPC), J. Environ Sci., 14(6), 565-575. https://doi.org/10.5322/JES.2005.14.6.565
  7. Kim, J. Y., Choi, B. C, 2002, Aerosol size distributions and their regional characteristics over Korea, J. of the Korean Meteorological Society, 38(2), 95-104.
  8. Longley, I. D., Inglis, D. W. F., Gallagher, M. W., Williams, P. I., Allan, J. D., Coe, H., 2005, Using $NO_{x}$ and CO monitoring data to indicate fine aerosol number concentrations and emission factors in three UK conurbations, Atmos. Environ., 39, 5157-5169. https://doi.org/10.1016/j.atmosenv.2005.05.017
  9. Minoura, H., Takekawa, H., 2005, Observation of number concentrations of atmospheric aerosols and analysis of nanoparticle behavior at an urban background area in japan, Atmos. Environ., 39, 5806-5816. https://doi.org/10.1016/j.atmosenv.2005.06.033
  10. Park, K. Y., Lee, H. G., Suh, M. S., Jang, K. M., Kang, C. H., Hu, C. G., Kim, Y. J., 1994, Analysis of air pollution concentrations at Cheju baseline measurement station, J. of Korea Air Pollution Res. Assoc., 10(4), 252-259.
  11. Renjian, Z., Zhiwei, H., Zhenxing, S., Junji, C., 2008, Continuous Measurement of Number Concentrations and Elemental composition of aerosol particles for a dust storm event in Beijing, Adv. Atmos. Sci., 25(1), 89-95. https://doi.org/10.1007/s00376-008-0089-2
  12. Sharma, D. K., Rai, J., Israil, M., Singh, P., 2003, Summer variations of the atmospheric aerosol number concentration over Roorkee, India, J. Atmos. Solterr. Phy., 65, 1007-1019.
  13. Sharma, N. L., Sharma, J. C., Singh, M., Sharma, P., Chand, K., Negi, A. K., Sharma, M., Thakur, H. K., 2011, Atmospheric ultrafine aerosol number concentration and its correlation with vehicular flow at two sites in the western Himalayan region: Kullu-Manali, India, J. Earth Syst. Sci., 130(2), 281-290.
  14. Stanier, C. O., Khlystov, A. Y., Pandis, S. N., 2004, Ambient aerosol size distributions and number concentrations measured during the pittsburgh air quality study (PAQS), Atmos. Environ., 38, 3275-3284. https://doi.org/10.1016/j.atmosenv.2004.03.020
  15. Vyziene, R., Girgždys, A., 2009, Investigation of aerosol number concentration in jonava town, J. of Environ. Eng. Landsc., 17(1), 51-59. https://doi.org/10.3846/1648-6897.2009.17.51-59
  16. Watanabe, K., Suzuki, I., Dokiya, Y., 2005, Aerosol number concentrations during kosa events on suburban hills in Japan, Water, Air, and Soil Pollution, 5, 195-206. https://doi.org/10.1007/s11267-005-0735-y
  17. Yan, F., Hu, H., Yu, T., 2004, Analysis of particulate mass concentration, aerosol number concentration and visibility in Beijing, Chin. Particuology, 2(1), 25-30. https://doi.org/10.1016/S1672-2515(07)60016-5

Acknowledgement

Supported by : 기상청