This study is designed to investigate the characteristics of PM10 concentration and the chemical composition of heavy metallic components in the PM10 sampled in western Busan from March to May, 2003. PM10 measurement was done during springtime of 2003, totaling 29 days: 9 days in March, 10 days in April and 10 days in May. With a sampling time of 24 hours, it started 9:00 AM on that day and ended 9:00 AM the next day. The mean contribution ratio of soil during springtime was 10.3 %. Al had a significant correlation with Ca, Fe, Mg and Si and little correlation with Na, Ni and Zn.

• Byung-Il Jeon(Department of Environmental Engineering, Silla University)
• Yong-Sik Hwang(Institute of Industrial Medicine and Department of Environmental Occupational Medicine, Inje University) Corresponding Author