| DI-E2 | CNG | E10 | E85 | DI-E6 |
---|---|---|---|---|---|
PM emissions | |||||
 PM mass (mg/km) | 62.6 | 0.48 | 1.35 | 0.92 | 0.64 |
 PN (#/km) | 1.28 × 1014 | 6.63 × 1010 | 7.63 × 1011 | 7.49 × 1011 | 5.62 × 109 |
Nitrogen oxides | |||||
 NOx (mg/km) | 1150 | 201 | 31 | 16 | 463 |
Organic constituents | |||||
 Sum of total PAHs (μg/km) | 32.2 | 0.53 | 6.52 | 5.44 | 0.97 |
Inorganic elements (mg/km) | |||||
 SO42− | 0.125 | < DL | < DL | < DL | < DL |
 NO3− | 0.125 | < DL | < DL | < DL | 0.053 |
 Cl− | 0.063 | < DL | < DL | < DL | < DL |