Element | Concentrations of particulate per sample (wt%) | |
Bus | Truck | |
S | 52.67 | 30.08 |
Fe | 16.51 | 22.24 |
Si | 11.83 | 7.63 |
Ca | 9.00 | 23.82 |
Zn | 2.95 | 12.10 |
P | 1.85 | 2.11 |
Ni | 1.37 | 0.29 |
Cr | 0.69 | 0.56 |
Ti | 0.62 | 0.44 |
Mn | 0.31 | 0.49 |
Cu | 0.18 | 0.24 |