The performance of rapeseed oil combustion in regard to organic pollutant production (solid particulate, light hydrocarbons, aldehydes and PAH) was investigated and compared to the performance of a typical heavy fuel oil burned in the same experimental conditions. C1-C6 hydrocarbons were formed in lower amounts in the rapeseed oil flame, but the composition and distribution was found to be very similar for both fuels. Due to the very high-temperature environment typical of stationary combustion a very low presence of aldehydes like acrolein was found only in the initial region of the rapeseed oil spray flame. Rapeseed oil was found to be a "cleaner" fuel compared to the heavy fuel oil also in respect to the formation of particulates, condensed species, and in particular PAH. The composition of PAH formed from the combustion of both fuels was that typically measured in rich combustion irrespective of the fuel utilised.