CO, g/km

HC, g/km

NOx, g/km

HC + NOx, g/km

PM, mg/km

PN, #/km

Diesel car with DPF

0.10

0.010

0.253

0.263

1.9

3.6 × 10¹⁰

Euro 4 standard limit

0.5

0.25

0.30

25

Euro 5 standard limit

0.5

0.18

0.23

5

6 × 10¹¹ (stage b)

Euro 6 standard limit

0.5

0.08

0.17

5

6 × 10¹¹

Hybrid vehicle

0.16

0.04

0.01

0.05

8.9 × 10¹¹

CNG vehicle

1.03

0.06

0.03

0.09

5.0 × 10¹¹

Euro 4 standard limit

1

0.1

0.08

Euro 5 standard limit

1

0.1 (0.068 NMHC)

0.06

Euro 6 standard limit

1

0.1 (0.068 NMHC)

0.06