|
KMID : 0893320070220040329
|
|
Journal of Environmental Toxicology
2007 Volume.22 No. 4 p.329 ~ p.337
|
|
|
Temporal and Spatial Pollution Characteristics of Ambient Criteria Pollutants in Metropolitan and Industrial Cities of Daegu-Gyeongbuk Area
|
|
Lee Hyun-Cheol
Jo Wan-Kuen
Kim Jong-Tae
|
|
|
Abstract
|
|
|
|
This study considers the characteristics of nitrogen dioxide (), ozone () and sulfur dioxide () in three cities of Daegu-Gyeongbuk Area (Daegu, Pohang, and Gumi), which have different city or industrial characteristics, over a time period of 2 years. The diurnal, weekly, monthly and seasonal concentration variations of criteria air pollutants were attributed to compounds or city types. However, the seasonal variations of concentrations were dependent on compounds, but not on city types. Lower concentrations were observed in July when comparing with other summer months. For and , the concentrations were higher in Daegu when compared to Pohang and Gumi, while the concentrations of were higher in Pohang and Gumi. exhibited higher levels in the morning hours, while exhibited higher levels in the afternoon hours for all cities. For , the concentrations observed during Sunday were higher than those of other week or weekend days. Furthermore, the monthly and seasonal concentration variations of air pollutants depended on compounds or city types. It if noteworthy that the current monthly and seasonal variations were consistent with several prey ious studies.
|
|
|
KEYWORD
|
|
|
criteria pollutants, diurnal variation, weekly, monthly, seasonal, city type
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|