How does bio-diesel compare to petroleum diesel in respect to air pollution and human health?
Tests show the use of biodiesel in diesel engines results in substantial reductions of unburned hydrocarbons, carbon monoxide, and particulate matter. Emissions of nitrogen-oxides stay the same or are slightly increased. • It’s an ecological loop — When the plants grow they take up sun light, carbon dioxide and water. When the biodiesel is burned, it gives off energy, carbon dioxide and water. • Smog — The ozone (smog) forming potential of biodiesel hydrocarbons is 50 percent less than that measured for diesel fuel. • Sulfur emissions are essentially eliminated with pure biodiesel. The exhaust emissions of sulfur oxides and sulphates (major components of acid rain) from biodiesel are essentially eliminated compared to diesel. • Carbon Monoxide — The exhaust emissions of carbon monoxide (a poisonous gas) from biodiesel are on average 48 percent lower than carbon monoxide emissions from diesel. • Particulate Matter — Breathing particulate has been shown to be a human health hazard. T
