AAAR 32nd Annual Conference
September 30 - October 4, 2013
Oregon Convention Center
Portland, Oregon, USA
Abstract View
The Optical Behavior of Soot as a Function of Relative Humidity
YIYI WEI, Qing Zhang, Jonathan E. Thompson, Texas Tech University
Abstract Number: 413 Working Group: Aerosol Chemistry
Abstract Black carbon contributes significantly in absorbing visible solar radiation in the atmosphere and leads to atmospheric warming. Yet, the extent to which this occurs depends on particle morphology and mixing state. In this work, we have explored the optical properties of kerosene soot under different humidity conditions ranging from 10% RH to 95% RH. Optical parameters were measured via photoacoustic spectroscopy and the albedometer that has previously been developed in our laboratory. In addition, the effect of soot particle aging was considered.