Environmental benefits of PVC are touted on what appears to be an industry funded website but there is also some serious criticism of PVC claiming that the manufacture produces dioxin and that additives contained in the material leach out during use, with toxic effects.
Do current PVC production methods tend to have issues with toxic pollution? Is there any balanced research on this that is not likely to be one-sided? (in comparison to industry or, say, Greenpeace funded research)
During use, is there evidence PVC is toxic (to people, or perhaps aquatic life) when used in typical ways?
When disposing of PVC (ie after it can no longer be recycled), is there a safe way to destroy it, such as through incineration? Note I'm aware that currently it likely mostly ends up as landfill, but there may be room for improvement if it can be safely destroyed.
I'm aware this is a somewhat broad question, so a broad answer is appropriate.