Release of offensive odorants from the combustion of barbecue charcoals

The present study measured several offensive odour compounds (volatile organic compounds [VOC], reduced S compounds, carbonyls, NH3) along with several reference pollutants (benzene, CS2, SO2, CO, total hydrocarbon) in barbecue charcoal combustion fumes produced in 5 countries (Korea, China, Indonesia, Malaysia, USA). Although emission concentrations of most odorants were generally below reference guidelines set by the malodour prevention law in Korea, the mean concentration of some aldehydes (acetaldehyde, propionaldehyde, isovaleraldehyde) and NH3 exceeded those guidelines. Aldehydes were the most dominant odorant released from charcoal combustion followed by VOC and NH3. When odorant levels of charcoal products were compared, there were great distinctions among the products from different countries. If that comparison used the sum of odour intensity (SOI) concept, the magnitude of SOI for the charcoal products from the 5 countries varied in the order: 4.30 (Korea), 3.10 (Indonesia), 2.97 (China), 2.76 (Malaysia), and 2.76 (USA).

Authors: Rahman, Md. Mahmudur; Kim, Ki-Hyun ;Full Source: Journal of Hazardous Materials [online computer file] 2012, 215-216, 233-242 (Eng) ;