Source Identification of Atmospheric Polycyclic Aromatic Hydrocarbons (PAHs) in Industrial Complex using Diagnostic Ratios and Principal Component Analysis
Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous pollutants around the world and some congeners among them are known as carcinogenic chemicals. PAHs are nowadays being described as potential persistent organic pollutants (POPs). Therefore, this study is aimed to identify sources of PAHs in the atmosphere around Sihwa and Banwol industrial areas by using diagnostic ratio of certain PAHs congeners and principal component analysis (PCA). The level of atmospheric PAHs was ranged from 8.07 to 177ng/m3 (gaseous phase: 5.93～68.4ng/m3, particulate phase: 1.85～128ng/m3). From the results of double ratio plots, it is regarded atmospheric PAHs in Sihwa and Banwol industrial complex were originated by combination of traffic emission, coal combustion and petroleum. For higher accuracy of source identification, PCA was carried out for warm and cold period, respectively. As a result, five factors, which accounted for 94.65％ and 98.28％ of cumulative variance in warm and cold period respectively, were extracted. The main source of atmospheric PAHs was vehicular emission. Coal combustion & incineration-related source was also significant source. Portion of natural gas combustion was increased in cold period and there seemed to be almost no significant influence of petrochemical source even though it accounted for about 10％ of total industrial facilities.
Seok-Un Park Byoung-Ju Song Jae-Sik Kim Jong-Guk Kim
Korea Electric Power Research Institute,103-16 Munji-Dong,Yuseong-Gu,Daejeon,Korea 305-380 Chonbuk National University,664-14 1 Ga,Dukjin-Dong,Dukjin-Gu,Jeonju,Chonbuk,Korea 561-756 Chungcheongnam-Do Institute of Health and Environmental Research,44-1,Gayang 2-Dong,Dong-Gu,Deajeon,
国际会议
北京
英文
1-6
2009-08-24（万方平台首次上网日期，不代表论文的发表时间）