Toluene not carcinogenic, etc.

[PolytheneSam]

According to this toluene isn't carcinogenic. Note in the second paragraph after BACKGROUND OF THE INVENTION

Conversion of benzene to toluene is commercially important because benzene is carcinogenic, whereas toluene is not.

http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=/netahtml/srchnum.htm&r=1&f=G&l=50&s1=%275095160%27.WKU.&OS=PN/5095160&RS=PN/5095160

Also in US patent 6048450 it says that there is no more than 1% benzene in gasoline......

http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=/netahtml/srchnum.htm&r=1&f=G&l=50&s1=%276048450%27.WKU.&OS=PN/6048450&RS=PN/6048450

Also see

http://ehpnet1.niehs.nih.gov/docs/1996/Suppl-6/dees.html

http://www.packardbioscience.com/reference_matl/reference_matl.asp?content_item_id=227

http://www.aqmd.gov/aqmp/app__a_tables.html

http://www.inchem.org/documents/jecfa/jecmono/v16je24.htm

http://www.orcbs.msu.edu/newsletters/February1996/hazmat_toluene.html

Hexane doesn't seem to have much carcinogenicity risk either.

http://www.lakes-environmental.com/toxic/n-HEXANE.HTML

http://www.geocities.com/dritte123/PSPF.html