Exhaust gas that they produce smaller quantities of toxic pollutants (e.g. oxides of nitrogen) than petrol and diesel engines of the same power. They produce larger quantities of carbon dioxide but less carbon monoxide due to more efficient combustion. Researchers from the University of California, Los Angeles School of Public Health say preliminary results of their statistical study of children listed in the California Cancer Registry born between 1998 and 2007 found that traffic pollution may be associated with a 5% to 15% increase in the likelihood of some cancers. A World Health Organization study found that diesel fumes cause an increase
EcoJet concept car of a trip to clean it, since biodiesel fuel tends to gum up the fuel system if not cleared. The exhaust gas temperature is 1000 degrees Fahrenheit in normal operation and 1800 Fahrenheit at full power. Exhaust is directed upward from two ports on the rear deck. In essence, the car runs on refined cooking oil, thus producing the same kind of smell created by cooking French fries. The car has an Azentek in-dash car computer running Microsoft Windows Vista, with two LCD screens on the dashboard — one for the aircraft-style digital gauges and another for the multimedia and