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Table 2 Engine emission results, in % difference from no. 2 diesel [4]

From: Algae biodiesel - a feasibility report

Emission B100 B20
Hydrocarbons -52.4% -19.0%
Carbon monoxide -47.6% -26.1%
Nitrous oxides -10.0% -3.7%
Carbon dioxide +0.9% +0.7%
Particulate matter +9.9% -2.8%