Plastic #3, also known as polyvinyl chloride (PVC), is not only the least recyclable plastic, but also one of the most toxic plastics used to make consumer goods. Exposure to its chemicals, which include dioxins and phthalates, can result in hormone and gene disruption, birth defects and cancer. Plastic #3 is used to make items such as blister packs, plastic tablecloths, credit cards, shoes, clothing and furniture.