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This study was performed to investigate the contents characteristics of hazardous oil wastes and wastesof liquid fuels from different industrial process. In order to establish a hazardous waste list, samples of variousindustrial discharge have been analyzed for 16 non-regulated inorganic hazardous substances (i.e., Cu, Pb, Cd,CN, Hg, As, T-Cr, Cr 6+ , Sb, Ni, F, V, Ba, Zn, Be, Se). In more detail, hazardous waste samples includingwaste hydraulic oils, waste engine, gear and lubricating oils, waste insulating and heat transmission oils, bilgeoils, oil/water separator contents processing were collected from 37 workplaces and analyzed. We observedthat the most of the inorganic substances exceeded the proposed criteria in many samples. Especially theconcentration of Sb in heat transmission oil, bilge oil and gear & lubricating oils were ranged from 6 to 419mg/kg whereas the proposed criteria is 50 mg/kg. The assessment result of hazardous waste in Korea accordingto the EWC showed that the out of 24 processes, 16 belongs to absolute entry and 8 belongs to mirror entry.In conclusion, we expect the outcome of this study to align the classification system of hazardous wastemanagement in South Korea with international legislations, and consequently contribute to reduce environmentalpollution as well as health risks by toxic wastes.:                .      ,  (EWC, European Waste Catalogue)    (EWC 13)    .   37     , ,  ,         51     16 (Cd, Pb, Cu, Hg, As, CN, Cr, Cr

Characteristics of hazardous oil & liquid fuel waste discharged from various industries