ABSTRACT
Introduction To evaluate the emissions of biodiesel [rapeseed oil methyl ester (RME)] vs. petrodiesel on a broad basis, four different fuels were investigated. In addition to the Swedish low-sulfur diesel fuel (DF) MK1, complying with the Swedish standard SS 15 54 35, and German biodiesel RME, complying with the German standard DIN 51606 (these standards were superseded by the European standard EN14214, see Table B-3 in Appendix B), the fuels examined were a petrodiesel fuel, complying with the European standard EN 590, and a low-sulfur DF with a high content of aromatics and a flatter boiling curve, complying with EN 590 and referred to as DF05. Technical data for the fuels, engine (DaimlerChrysler OM904LA) and the 13-mode ECE-R 49 test cycle (the running conditions correspond to the 13-mode cycle used in the United States; however, the weighting factors differ) were reported elsewhere (1). Because diesel engine particles likely pose a lung cancer hazard to humans (2), the determination of mutagenic potential of particulate matter was carried out to estimate possible carcinogenic health effects.
