In the study, public facilities in Korea covered by the law, including PC-rooms, child care facilities, bus terminalwaiting rooms, elderly nursing facilities, movie theaters, underground subway stations, super super markets andindoor parking lots (8 types of facility, for a total of 32 locations) were investigated for indoor gas phase PAHsand particulate phase PAHs. PAHs source profiles were investigated as well. Finally, public facilities PAHs wereestimated the main influencing factors and sources of indoor by factor analysis. Underground subway stations andPC-rooms tended to be higher the concentration than other facilities. It judged each the effects of car exhaust,smoking, and elderly nursing facilities, child care facilities, movie theaters, where the influence of the outdoor airis less relatively direct effect that car exhaust and incoming of ambient air, were showed low concentration. Supersuper markets displayed a large amount of different products and bus terminal waiting rooms influenced car exhaustis higher than those that. Sources of indoor PAHs in public facilities make out profiling(cooking process: broilingmeat and fish, incense, shampoo, decorative candles, tobacco) and on the effects of ambient on reported existingliterature(of diesel and gasoline engines, heating fuel, coke oven, a wood combustion) was referred for factor analysisto estimate emission sources. As a result of particulate PAHs phase, three major factors were showed that factor1: cooking, use of gas fuel and combustion devices, factor 2: smoking. Factor 3: car exhaust. Factor analysis resultsof gas PAHs phase are similar to particulate PAHs phase. Additionally, factors such as air fresheners was estimated.

The purpose of this study was to develop the preliminary source fingerprints of volatile organic compounds (VOC). The source categories studied were vehicles, gasoline vapor, gasoline storage tank, coating, dry cleaning and road covering. The source samples were collected using 6L electro-polished stainless steel canisters for about 20 seconds. From this study, the main component emitted from VOC sources in Korea was toluene. The toluene proportion for road covering, vehicles, coating and gasoline vapor were 35, 18, 16 and 5%, respectively. The C2-C5 alkane and alkene compounds were mainly emitted from vehicles, gasoline vapor and gasoline storage tank. The main compounds of coating were m/p-xylene(34%), toluene(16%), 1,2,4-TMB(10%) and o-xylene(9%), which are aromatic hydrocarbons. In the case of dry cleaning, nonane(41%), 1,2,4-TMB (22%) and 1,3,5-TMB(13%) were mainly emitted.