|
KMID : 0382420000260020034
|
|
Korean Journal of Environmental Health Society
2000 Volume.26 No. 2 p.34 ~ p.40
|
|
|
Source Characteristics of Polycyclic Aromatic Hydrocarbons of Airborne Particulate Matter in Taegu Area
|
|
Choi Sung-Woo
Yoon Sung-Hun
|
|
|
Abstract
|
|
|
|
The purpose of this study was to investigate the seasonal variation of PAHs and to estimate their source characteristics in Taegu area. To do this, four sampling sites were selected to represent an industrial, a traffic, a traffic & residential, and a residential area in Taegu. Total of 72 samples had been collected from January, 1999 to September, 1999 on glass micro fiber filters by high volume air sampler. The PAHs in the total suspended particulate were extracted by a soxhlet process with dichloromethane and analyzed by GC/MSD, GC/FID. A statistical analysis was performed for the PAHs data set using a principal component analysis to derive important factor inherent in the interactions among the variables. The specific conclusions of this research are: 1) There was a significant seasonal and local variation in the atmospheric concentration of PAHs. The seasonal variation is winter > spring > fall > summer, and the local variation is industrial > traffic > traffic & residential > residential area. 2) To evaluate the correlation between a measured PAHs and other affecting factors such as air pollutant concentration and meterological data, statistical analysis was performed. PAHs have negative correlation with temperature (r=-0.593, p<0.05), radiation (r=-0.535, p<0.05), and O_3 (r=-0.719, p<0.05), but have positive correlation with NO_2 (r=0.615, p<0.05). 3) Finally, multivariate analysis was performed for the PAHs data set to identify and to estimate the source contributions of PAHs. According to results of statistical analysis, it could be identified as three factors such as vehicular/gasoline, vehicular/ diesel, and combustion in Taegu area.
|
|
|
KEYWORD
|
|
|
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|
|