Applying GC-TCD to investigate the hygroscopic characteristics of mixed aerosols

摘要

Aerosol deliquescence plays a significant role in atmospheric phenomena such as acidic precipitation, formation of clouds and fogs, and changes in visibility. Important factors including aerosol composition and atmospheric relative humidity govern the aerosol deliquescence. However, recent work has revealed that certain aerosols form a metastable composition, which cannot be elucidated by measuring the solubility of bulk-phase solution, nor can it be predicted by traditional thermodynamic theory. This composition, however, contributes to the difference between the predicted and measured deliquescence of atmospheric aerosol.