有機エアロゾルの光吸収特性

抄録

Aerosol particles play an important role in radiation balance in the atmosphere by scattering and absorbing incident light. It has recently been suggested that some organic aerosols “brown carbon” can absorb solar radiation, especially at the shorter visible and UV wavelengths, and possibly contribute to the radiation balance and photochemical reactions. In this article, optical parameters and techniques to measure aerosol light absorption are briefly overviewed and recent laboratory and field studies on optical properties of brown carbon are reviewed in order to reveal its sources and contributions.