I came across this article on eartheasy.com (http://eartheasy.com/blog/2012/05/plastics-by-the-numbers/) that details the different numbered plastics and basically explains what each one means. I thought it would be helpful to outline how this article fits into recycling here at Michigan and clarify some frequently asked questions about single stream recycling. On the Ann Arbor campus, single stream recycling means that there is no sorting and all recyclables can be placed in to the same bin - excluding #3 plastics, styrofoam, plastic bags, batteries, napkins, paper cups/plates, lightbulbs, ceramics, and tissue paper/products. While some of these "unacceptables" are easier to identify then others, #3 PVCs (or Polyvinyl Chlorides) are not readily identifiable by many. So here's the breakdown:
PVC = Polyvinyl Chloride and probably better known to many as the soft plastic in clear plastic food wrap, children's and pet's toys, and blister packaging (as seen in the following photos).
PVC is also used for plumbing, as in the common item of white PVC pipe that many know. PVC is widely used in construction because it is durable, cheap, and easily worked.
The problem with this #3 plastic becomes clear in its nickname the "poison plastic", with numerous toxins contained within it. The incineration of PVC can release carbon dioxide and cadmium into the environment, and yet products using PVC plastic are not recyclable. In order to divert some PVC waste from the landfill, the reuse and repurposing of PVC is encouraged (though not for food or children's use).
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