On a separate note, in the comment section of this article, a young woman states she uses vinegar and bleach for cleaning. This sounds like a natural alternative to chemical cleaners, but in reality mixing bleach and vinegar can create a toxic chlorine gas. Someone reading this comment would think the bleach/vinegar mixture would be a great alternative, but in reality they would be creating something very dangerous.
We need to remember that chemicals are dangerous. Mixing bleach with even something as safe as vinegar can create a chemical cocktail. That is why I suggest using natural items from your pantry and using great care so that don't hurt yourself and your family or your pets.
If you would like to read the actual study, you can find it here at http://www.thebostonchannel.com/download/2012/0308/30637602.pdf
And here is a summary of the report: http://www.thebostonchannel.com/download/2012/0308/30637569.pdf