Traditionally, the two-film model is used to estimate volatilization of an organic solute from water into air. In this theory it is assumed that chemicals pass through liquid film and gas film by molecular diffusion. Although molecular diffusion is a dominant mechanism of organic solutes emitting from natural water bodies, changes in the interaction of solutes relative to solution and environmental conditions might lead to a necessary modification on the two-film model. In this report, volatilization of organic solutes from waster and wastewater under various environmental conditions including liquid-mixing, air turbulence, and presence of surfactants in wastewater are reviewed. A new model, surface-depletion rate-limiting (SDRL) model, was developed in the previous investigation to address varieties in volatilization rates of solutes under different environmental conditions. The significant difference between two-film model and SDRL model was also discussed.