Here is another site with some information of importance. It discusses many of the toxins of the petrol industry----butadiene, butane, benzene,
ammonia, carbonyl sulfide, ethane, ethyl benzene, ethylene, hexane, hydrogen sulfide, methane, nitrous oxide, octane, and more.
Thanks. I'm glad someone is gathering all information related in one place so that people can put things into perspective about the gravity and the
magnitude of this mess.