Laboratory perspectives on the chemical transformations of organic matter in atmospheric particles

The laboratory studies on the chemical processes of organic matter in aerosol properties were described. Well-defined model systems for organic aerosols were used by the studies. A set of a few model compounds were obtained using quantitative measurements of the organic carbon and the concentrations of the main functional groups composing the aerosol water soluble organic compounds (WSOC). The major functional groups of organic matter in collected particles were identified using infrared spectroscopy.