AAAR 34th Annual Conference
October 12 - October 16, 2015
Hyatt Regency
Minneapolis, Minnesota, USA
Abstract View
A PAM Reactor Investigation on Physiochemical Properties of Transported Chinese Haze at Gosan Climate Observatory
XIAONA SHANG, Eunha Kang, William Brune, Jihyun Han, Saehee Lim, Sang-Woo Kim, Meehye Lee, Korea University, South Korea
Abstract Number: 486 Working Group: Remote and Regional Atmospheric Aerosols
Abstract A PAM (potential aerosol mass) reactor was deployed with a SMPS (scanning mobility particle sizer) to investigate secondary aerosol forming potential of haze air masses at Gosan Climate Observatory (GCO), South Korea, in Nov., 2010. PAM reactor is designed to simulate the atmospheric oxidation process in a laboratory and field by producing a highly oxidizing environment.
The haze was transported from China and two types of haze were identified based on chemical characteristics of aerosols. The first phase was impacted by biomass combustion and characterized by great enhancements of potassium and organic compounds. The second phase was the mixed plume of biomass and coal combustion, during which SO2 and sulfate concentration was remarkably elevated. Of the two, PAM produced more number of particles both in nucleation and condensation mode for second phase. Particularly, the mode diameter of number was found at 200 ~ 300 nm, at which mass increase was also distinguished.