EPA Approved a Fuel Ingredient Even Though It Could Cause Cancer in Virtually Every Person Exposed O

[hunter]

10. I doubt it was like that, no dioxins, Polychlorinated_biphenyl, or the like...

... it's just that the oil company (a big one that sold supposedly superior grades of gasoline) suddenly became a lot less interested in the actual chemical composition of their gasoline and began using less well characterized hydrocarbon streams in their blends.

This might be an interesting thing to research. It may have been related to the oil embargo of 1973 now that I think about it.

Gasoline has always been a toxic brew, as NNadir notes below.