Air and noise pollution of a diesel engine fueled with olive pomace oil methyl ester and petrodiesel blends

► We proposed the use of low quality olive pomace oil to produce biodiesel. ► Cetane number depicts a stronger influence over noise production than bulk modulus. ► Bulk modulus exhibits a stronger influence over NOx emissions than cetane number. ► Biodiesel blends reduce air and noise pollution and improve sound quality.