What about emissions from using biodiesel?

BIODIESEL EMISSIONS COMPARED TO CONVENTIONAL DIESEL

Emission Type                                                              B100                     B20

Regulated
Total Unburned Hydrocarbons                                -68%                     -14%
Carbon Monoxide                                                        -44%                        -9%
Particulate Matter                                                         -40%                        -8%
NOx                                                                                  +6%                        +1%
Non-Regulated Sulfates                                          -100%                      -20%*
PAH (Polycyclic Aromatic Hydrocarbons)**         -80%                      -13%
nPAH (nitrated PAH's)**                                             -90%                      -50%***
Ozone potential of speciated HC                             -50%                     -10%

*Estimated from B100 result
** Average reduction across all compounds measured
*** 2-nitroflourine results were within test method variability

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