KJCKorea
Journal Central

The PM10 and PM 2.5aerosols were collected at Busan from March to May, 2005, and theconcentrations of some metallic elements were analysed to study their characteristics. The meanconcentration of PM10 was 66.5± 23.0 mg/m 3 with a range of 22.2 to 118.1 mg/m 3. The meanconcentration of PM2.5was 46.1± 17.2 mg/m 3 with a range of 9.7 to 83.3 mg/m 3. The ratio ofPM2.5/ PM10 was 0.69 at Busan. The distribution of metallic elements for PM10 and PM 2.5wereCd<Ni<Cr<Ti<Sr<....<Al<K<Fe<Si<Na and Cd<Cr<Ti<Ni....<K<Al<Si<Fe<Na, respectively.The mean mass concentrations of Asian dust and non Asian dust in PM10 were 94.9 mg/m 3 and63.7 mg/m 3, respectively. And The mean mass concentrations of Asian dust and non Asian dustin PM2.5were 56.9 mg/m 3 and 45.1 mg/m 3, respectively. The mean values of crustal enrichmentfactors for five elements (Cd, Cu, Pb, V and Zn) were all higher than 10, possibly suggesting theinfluence of anthropogenic sources. The soil contribution ratios for PM10 and PM 2.5were 20.5%and 19.4, respectively.

PM10, PM2.5, metallic elements, crustal enrichment factor, Asian dust