Building with toxic materials is such a bad practice, in part because we are embedding them into environments where people then tend to have long term exposure to them. It's good to be aware that carcinogenic and toxic material is not only found in scores of products in the building industry, but also in common consumer goods. If we have the choice, why not opt out of products that use materials that are bad for the environmental or our health?  One informative website that works to provide helpful information about this is  Healthy Stuff Lab