Yearly average mass concentration of elements of PM2.5 (unit: Lg/m3) | ||||||
Element | Brisbane, Australiaa | Gent, Belgiumb | Lisbon, Portugalc | Birmingham, UKd | Bangkok, Thailande | Beijing, Chinaf |
Fe | 198 | 240 | 470 | 187 | 891 | 1344 |
K | 78 | 97 | 376 | 71.5 | 471 | 2583 |
Mn | 3.85 | 8.1 | 7.06 | 6.40 | 22.5 | 110.6 |