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Table 1 Marginal external costs and emission rates as a function of the tons of fuel

From: Is reducing speed the right mitigating action to limit harmful emissions of seagoing RoRo cargo carriers?

Emission rates per kg or ton fuel and external costs per ton emitted.
4 stroke diesels and CO2 SO2 PM HC CO NOx Tier 1 NOx Tier 2 CH4
LNG emission rates ton per ton kg per ton kg per ton kg per ton kg per ton kg per ton kg per ton kg per ton
HFO (2,5 % S) 3.114 52.5 12.5 3.33 3.33 80 60 0.099
LFO (0,05 % S) 3.151 1.05   3.33 3.33 80 60 0.099
DO (MDO) (0,05 % S) 3.206 1.05 2.3 3.33 3.33 80 60 0.099
GO (0,05 % S) 2.750 1.05   3.33 3.33 80 60 0.099
LNG pure 3.000    3.23 8.39 8.4   50
LNG/DO (4 till 6 % DO) 2.780   0.6 3.13 8.13 60   50
External costs/ton € 15 € 6 000 € 12 000 € 2 000 € 22 € 4 900 € 4 900 € 2 000