A study was conducted to come up with management measures for harmful substances in different use districts by assessing the characteristics of polycyclic aromatic hydrocarbons (PAHs) resulted from use zoning in urban areas. Out of the national hazardous air monitoring systems, nine representative a...
A study was conducted to come up with management measures for harmful substances in different use districts by assessing the characteristics of polycyclic aromatic hydrocarbons (PAHs) resulted from use zoning in urban areas. Out of the national hazardous air monitoring systems, nine representative areas have been selected including a residential area (Dogok-dong, Seoul and Shinjung-dong, Ulsan), a roadside area (Seoul station), a petrochemical industrial complex (Yeochun-dong, Ulsan, Samil-dong, South Jeolla province, and Dokgot-li, South Chungcheong province), a steel industrial complex (Jangheung-dong, North Kyungsang province and Jung-dong, South Jeolla province), and a background site ( Pado-li, South Chungcheong province) for four years from 2006 to 2009. The analyses on monthly, seasonal, annual, material correlations and regional characteristics on seven items out of PHAs were carried out. According to the result of monthly analysis, despite the fact that the Pohang steel industrial complex, the center of industrial park, shows the highest PHAs concentration and the smallest annual concentration change, most of the areas have a U-shaped graph that shows higher concentration in winter and lower concentration in summer and the seasonal analysis discovered similar result of higher concentration in winter and lower concentration in summer. In terms of the annual PAHs concentration, the background site of Pado-li, South Chungcheong province shows an increasing concentration level annually and the result of comparison between PAHs concentration and PM 10 emissions tells that the other sites have similar pattern with slight differences. This can be explained that complex factors such as difference in atmospheric mixing height, difference in precipitation, air temperature inversion, difference in the amount of heating fuel use, impacts of imperfect combustion in winter played in. The result of analysis on major components of PAHs shows that the accumulation/distribution rate in eight areas except the background site ranges from 79.5%~97.1%, and when the four to five major components were extracted in each area, the roadside area has high component loading of mobile sources such as BbF and BkG, the petroleum industrial compelex has BaA and BbF and the steel industrial complex has BbG and IcdP, which in turn indicates the major components are related to discharge sources related to combustion gas of energy oil including heavy oil. According to the result of analysis on material correlations of PAHs depending of regional characteristics including residential area, the significance among materials was high (P < 0.05) except for BaP and BbF in the petrochemical industrial complex the a steel industrial complex while the regional significance of material against temperature, wind speed, and relative humidity was relatively low.
A study was conducted to come up with management measures for harmful substances in different use districts by assessing the characteristics of polycyclic aromatic hydrocarbons (PAHs) resulted from use zoning in urban areas. Out of the national hazardous air monitoring systems, nine representative areas have been selected including a residential area (Dogok-dong, Seoul and Shinjung-dong, Ulsan), a roadside area (Seoul station), a petrochemical industrial complex (Yeochun-dong, Ulsan, Samil-dong, South Jeolla province, and Dokgot-li, South Chungcheong province), a steel industrial complex (Jangheung-dong, North Kyungsang province and Jung-dong, South Jeolla province), and a background site ( Pado-li, South Chungcheong province) for four years from 2006 to 2009. The analyses on monthly, seasonal, annual, material correlations and regional characteristics on seven items out of PHAs were carried out. According to the result of monthly analysis, despite the fact that the Pohang steel industrial complex, the center of industrial park, shows the highest PHAs concentration and the smallest annual concentration change, most of the areas have a U-shaped graph that shows higher concentration in winter and lower concentration in summer and the seasonal analysis discovered similar result of higher concentration in winter and lower concentration in summer. In terms of the annual PAHs concentration, the background site of Pado-li, South Chungcheong province shows an increasing concentration level annually and the result of comparison between PAHs concentration and PM 10 emissions tells that the other sites have similar pattern with slight differences. This can be explained that complex factors such as difference in atmospheric mixing height, difference in precipitation, air temperature inversion, difference in the amount of heating fuel use, impacts of imperfect combustion in winter played in. The result of analysis on major components of PAHs shows that the accumulation/distribution rate in eight areas except the background site ranges from 79.5%~97.1%, and when the four to five major components were extracted in each area, the roadside area has high component loading of mobile sources such as BbF and BkG, the petroleum industrial compelex has BaA and BbF and the steel industrial complex has BbG and IcdP, which in turn indicates the major components are related to discharge sources related to combustion gas of energy oil including heavy oil. According to the result of analysis on material correlations of PAHs depending of regional characteristics including residential area, the significance among materials was high (P < 0.05) except for BaP and BbF in the petrochemical industrial complex the a steel industrial complex while the regional significance of material against temperature, wind speed, and relative humidity was relatively low.
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#다환방향족탄화수소 PAHs 대기오염 도시오염
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