ODOR AND VOCs MEASUREMENT OF AMBIENT AIR OF DAEJEON 1 AND 2 INDUSTRIAL COMPLEXES IN KOREA

ABSTRACT

Over the past few years, air pollution has been mainly caused by SOx, NOx, but nowadays odor problems are attracting public attention as another form of air pollution in Korea. Consequently, the national assembly established the Odor Prevention Law in Feb. 2004 and the EPA of Korea enforced the standards of odor emissions at stacks and off-site. Accordingly, many projects involving the odor analysis, deodorizing technique have been performed. This study was carried out to investigate odor concentration and VOCs concentration of ambient air sampled in situ and off-site at an industrial complex in Daejeon. To measure odor concentration, air dilution sensory tests were used and VOCs concentrations were measured by instruments such as GCMS and GC. As a result of the field investigation study, it was estimated that the main malodorous compounds are MIBK, H₂S, acetaldehyde and Iso-valeraldehyde and the odor concentration measured off-site ranged from 100 OU_K/m³ to 1,000 OU_K/m³

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