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What Do the Numbers Inside Recycling Symbols on Plastic Items Mean?

What Do the Numbers Inside Recycling Symbols on Plastic Items Mean?

What do the different numbers inside a recycling symbol on a plastic container mean? HowStuffWorks investigates.


Related HowStuffWorks Articles

Sources

  • A Real Tree. (April 8, 2009) http://www.arealtree.com/forest/info
  • BreadCrumbz. (April 9, 2009) http://www.bcrumbz.com/
  • Ecorio. (April 8, 2009) http://www.ecorio.org/index.htm
  • Hunter Research and Technology, LLC. "greenMeter." (April 8, 2009) http://hunter.pairsite.com/greenmeter/
  • James. "Calling all Innovators -- the winners!" Nokia Conversations. Feb. 18, 2009. (April 8, 2009) http://conversations.nokia.com/2009/02/18/calling-all-innovators-the-winners/

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