DOI QR코드

DOI QR Code

Formation and Hygroscopic Growth Properties of Ultrafine Particles in College Station, Texas, in 2003

2003년 미국 텍사스 칼리지스테이션에서 관측된 초미세입자의 형성과 흡습 성장 특성

  • Lee, Yong-Seob (Climate Policy Division, Korea Meteorological Administration) ;
  • Collins, Don R. (Department of Atmospheric Sciences, Texas A&M University College Station)
  • Published : 2007.07.30

Abstract

During May of 2003, smoke from fires in the Yucatan Peninsula was transported across the Gulf of Mexico and into Texas where it caused significant enhancement in measured aerosol concentrations and reduced visibility. During this event, the formation and growth of aerosol particles has been observed by a differential mobility analyzer (DMA) / tandem differential mobility analyzer (TDMA) system to characterize the size distribution and size-resolved hygroscopicity of the aerosol. The most number concentration is by the particles smaller than 100 nm, but the integrated number concentrations for over 100 nm increased due to the aerosol growth. Hygroscopic growth factor increase from 1.2 to 1.4 for 25, 50, and 100 nm particles during the nucleating period. This distribution and the aerosol properties derived from the TDMA data were used to calculate the growth rate. Particle growth rates were in the range 1-12 nm/hr.

References

  1. Makela J. M., Aalto P., Jokinen V., Pohja T., Nissinem A., Palmroth S., Markkanen T., Seitsonen K., Lihavainen H., Kulmala M., 1997, Observations of ultrafine particle formation and growth in Boreal forest, Geophysical Research Letter, 24, 1219-1222 https://doi.org/10.1029/97GL00920
  2. Vakeva M., Hameri K., Aalto P. P., 2002, Hygroscopic properties of nucleation mode and aitken mode particles during nucleation bursts and in background air on the west coast of Ireland, Journal of Geophysical Research-Atmospheres, 107, No. D19. 8104 https://doi.org/10.1029/2000JD000176
  3. Kulmala M., Vehkamaki H., Petaja T., Dal Maso M., Lauri A., Kerminen V.-M., Birmili W., McMurry P. H., 2004, Formation and growth rates of ultrafine atmospheric particles: a review of observations, Aerosol Science, 35, 143-176 https://doi.org/10.1016/j.jaerosci.2003.10.003
  4. Lee Y. S., 2006, Predicted CCN spectra properties by coupling aerosol size distributions and size-resolved hygroscopicity in Houston, Texas, in 2004, Journal of the Korean Meteorological Society, 42(4), 253-263
  5. Stanier C. O., Khlystov A. Y., Pandis S. N., 2004, Nucleation event during the Pittsburgh air quality study: Description and relation to key meteorological, gas phase, and aerosol parameters, Aerosol Science and Technology, 38, 253-264 https://doi.org/10.1080/02786820390229570
  6. Hameri K., Vakeva M., Aalto P. P., Kulmala M., Swietlicki E., Zhou J., Seidl W., Becker E., O'dowd C. D., 2001, Hygroscopic and CCN properties of aerosol particles in Boreal forests, Tellus Series B-Chemical and Physical Meteorology, 53, 359-379 https://doi.org/10.1034/j.1600-0889.2001.d01-26.x
  7. Houghton J. T., et al., 2001, Intergovernmental Panel on Climate Change (IPCC), 2001, Climate change 2001: The scientific basis