AAAR 31st Annual Conference
October 8-12, 2012
Hyatt Regency Minneapolis
Minneapolis, Minnesota, USA
Abstract View
New Particle Formation and Growth Observed at Fukue Island, Japan in March 2012
SEYOUNG KIM, Takafumi Seto, Yoshio Otani, Akinori Takami, Naoki Kaneyasu, Toshiyuki Fujimoto, Kikuo Okuyama, Kanazawa university
Abstract Number: 284 Working Group: Aerosol Nucleation: From Clusters to Nanoparticles
Abstract We investigated the particle size distribution, total number concentration of particles and chemical composition of atmospheric aerosol at Fukue Island (128.7°E, 32.8°N) in Japan from March 9 to 17, 2012. Aerosol particles size distribution from 14 nm to 670 nm and total number concentration of particles were monitored by Scanning Mobility Particle Sizer (SMPS) (model 3081, TSI) every 240 sec resolution and Particle Condensation Counter (CPC) (model 3776, TSI) every 1 min resolution. A particle transfer event on March 11 and two new particle formation and growth events on March 12 and 15 were observed. The transfer event on March 11 was associated with an increase in particle concentration with the mobility diameter from 100 to 200 nm and it was considered to be the transport of contaminated air mass from the continent. In case of other two events, the onset of particle formation was identified late afternoon (15:00 and 18:00). The particle growth rate during these two events ranged from 1.88 to 2.92 nm h-1.