>do we just have ever-increasing gasoline clouds? Well, not quite. It does remain in the atmosphere as it dissipates and is diluted, but the whole time even a

>do we just have ever-increasing gasoline clouds? Well, not quite. It does remain in the atmosphere as it dissipates and is diluted, but the whole time even at the source its concentration is usually too low to condense. It just becomes air pollution, categorized as Air Toxics although some of the same natural hydrocarbons are referred to as "Unburned Hydrocarbons" when they are emitted after incomplete automotive combustion.