SFGTV2 January 6, 2013
If you leave your water in the car, its cooking and getting exposed to light, but either one of those can lead chemicals to leak into the plastic, with bpa, we know, for instance, that its hundreds of times more is leaked in with high heat than with low heat, its just the nature of plastics. But the chemicals in most food contacts like that and your Water Bottles are usually a number 1, the main chemical in most of those is usually relatively safe in the scheme of things, but then Different Comp...
Source: archive.org