By using hourly NO2 concentration data(1998～2000) at the Busan Metropolitan City air quality monitoring sites, characteristics of daily mean value of NO2 concentration was discussed in space and time.
The correlation between NO2 concentration and other relating air pollutants was analyzed by using SAS program and meteorological parameters as well.
After choosing representative 4 areas, this study used hourly concentration data(1998～2000) from air quality monitoring sites on NO2, NO, O3, CO, SO2 and PM10.
Typical metropolitan characteristics of two peaks in a day was shown in the variation of NO2 concentration of Busan city.

• 장난심(부산대학교 대기과학과) | Nan-Sim Jang Corresponding Author