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Old 05-31-2008   #4 (permalink)
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Re: What is more toxic - gasoline or gasoline exhaust?

Have you tried the MSDS (Material Safety Data Sheet) for Gasoline?

Quote:
Originally Posted by MSDS
IARC has determined that gasoline and gasoline exhaust are possibly carcinogenic in humans. Inhalation exposure to completely vaporized unleaded gasoline caused kidney cancers in male rats and liver tumors in female mice. The U.S. EPA has determined that the male kidney tumors are species-specific and are irrelevant for human health risk assessment. The significance of the tumors seen in female mice is not known. Exposure to light hydrocarbons in the same boiling range as this product has been associated in animal studies with effects to the central and peripheral nervous systems, liver, and kidneys. The significance of these animal models to predict similar human response to gasoline is uncertain.
It also has some harsh words on benzene:

Quote:
Originally Posted by MSDS
This product contains benzene. Human health studies indicate that prolonged and/or repeated overexposure to benzene may cause damage to the blood-forming system (particularly bone marrow), and serious blood disorders such as aplastic anemia and leukemia. Benzene is listed as a human carcinogen by the NTP, IARC, OSHA and ACGIH.
And wikipedia has some info on the health effects of benzene.

Actually, this has me thinking the best way to get detailed info might be to look at the ingredients of gasoline (the MSTS lists them) and research them individually:

\begin{array}{|c||c|} ingredient & percent \\\hline\textrm{Gasoline}&\textrm{100}\\\textrm{Benzene}&0.1 - 4.9\\\mathrm{n-Butane}&<10\\\mathrm{Ethyl Alcohol}&0 - 10\\\textrm{Ethyl benzene}&< 3\\\mathrm{n-Hexane}&0.5 \textrm{ to } 4\\\mathrm{Methyl-tertiary butyl ether}&0 \textrm{ to } 15.0\\\mathrm{Tertiary-amyl methyl ether}&0 \textrm{ to } 17.2\\\textrm{Toluene}&1 - 25\\\mathrm{1,2,4- Trimethylbenzene}&< 6\\\mathrm{Xylene, mixed isomers}&1 - 15\\\end{array}

-modest


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Last edited by modest; 05-31-2008 at 01:15 AM.. Reason: added array
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