| Vehicle type |
CO(g) |
NOn(g) |
SO2 (g) |
CO2 (g) |
| Pure electric vehicles |
2.9 |
19.6 |
72 |
115 |
| Hybrid |
2.5 |
51.3 |
86 |
163 |
| Diesel locomotive |
2.3 |
70.5 |
166 |
170 |