I did not find any while searching the Internet. However, I did find the following information: The solvent benzene, which increases the risk of leukemia even at small amounts of exposure, is part of our everyday lives. We are regularly exposed to benzene while breathing tobacco smoke, even secondhand smoke, pumping gasoline, while driving in high-traffic areas, and from industrial air pollution. Higher levels are released from the vapors of benzene-containing products such as glues, paints, furniture wax, and detergents. An estimated 44,240 new cases of leukemia will be diagnosed in the United States in 2007.
http://www.naturalpedia.com/benzene.html
