Comparative mutagenicity and genotoxicity of particles and aerosols emitted by the combustion of standard vs. rapeseed methyl ester supplemented bio-diesel fuels: impact of after treatment devices: oxidation catalyst and particulate filter.

•Gas phase of aerosols was mutagenic in TA98 and in TA102 w/o S9mix.•The PAHs amount on the particles was low and did not contribute to the mutagenicity.•Mutagenicity of particles was associated with nitroaromatic profiles exclusively.•DOC abolished the mutagenicity of particles, then retained into DPF.•Together, DOC+DFP efficiently reduce the particulate mutagenicity.