Onsan Industrial Complex located in a nearby the Ulsan Petrochemical Complex and in the east of the coast. For this reason, air pollution substances emitted by Onsan Industrial Complex especially tend to have an effect on meteorological factors such as sea breeze. In this study, we assessed the frequency of sea breeze and mist using the meteorological data, and analyzed po- tential temperature and upper wind condition for assessment of atmospheric pollution concentration influenced by meteorological

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The Influences of Concentration Distribution and Movement of Air Pollutants by Sea Breeze and Mist around Onsan Industrial Complex

【Air pollution characteristics and the influence of sea breeze on air pollution concentration were studied using the data measured at 7 air quality continuous monitoring stations in Pusan, 1993. Maximum air pollution concentration in Pusan was Gamjeondong for $SO_2$ , Sinpyeongdong for TSP, Daeyeondong for $O_3 , Kwangbokdong for $NO_2$ , Beomcheondong for CO and all substances were under annual ambient air quality standards. Increased rate of concentration for sea breeze was 24.4% for 502, 31.5% for TSP, 8.0% fort $O_3 , 26.7% for $NO_2$ , 15.7% for CO. Frequencies distribution of $SO_2$ , TSP, $O_3$ , $NO_2$ , and CO concentration for sea breeze moved toward high concentration class. Key Words : sea breeze, sea breezing day, air pollution concentration, ambient air quality standards】

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