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Benzoic acid is produced about 700tons/year in Korea as of 1998 survey. Most is used as a stabilizer in theprocesses of synthesis of pharmaceuticals and dyes. It is also used for ingradient of paint, disinfections, andantifungals. Due to the antioxidant activity of benzoic acid, the chemical is also used as food preservatives.Although the chemical is widely used in Korea, exposure levels in air, water, soil or sediment have not beenmonitored or estimated so that risk evaluation of benzoic acid was not possible. In this study, distribution of thechemical among environmental media was estimated using EQC model based on the chemical-physical prop-erties. In Level I and II of which the chemical are hypothesized in equilibrium and no transfer through themedia, more than 93% of benzoic acid are estimated to be distributed in water. However, in Level III of whichnon-equilibrium and intermedia transfer could be occurred, the chemical is estimated to distributed to soil,64% and water, 35% as of total amount.