I’ll admit I’ve never looked at the codes on the bottom of my plastics until I started trying to rid my household of plastics containing BPA. While this began so I could eliminate a health concern for my children, I’ve since learned what these codes mean in the world of recycling. Hopefully after reading this, some confusion will be eliminated so that people can start recycling the right types of plastic and realize how harmful plastic is to our environment.
Resin codes are found on most plastic with the ‘chasing arrows’ surrounding them in a triangle shape. These codes were created to classify plastic products. The arrows are misleading because they duplicate the symbol for recycling, however, it’s not true that plastics marked with any resin code can be recycled.
Most cities have their own recycling programs and govern which plastic resin codes they’ll accept at curb-side. My community accepts a high number of resin numbers (1,2,4,5,6) and have different and appropriate departments where each plastic is recycled appropriately. If a code 3 or 7 gets mixed into what a resident leaves out, that too gets sorted and put in the garbage, as there isn’t a recycling program for these two numbers. Find out which resin codes your city takes and what it does with plastic that doesn’t have a recycling program. Because all plastics have different melting points, it’s important to keep the different types separate because if recycled together, you wind up with goo.
Worldwide recycling rates for plastics with resin codes 3-7 is around 1 percent. Yikes! NONE of type 7 plastics can be recycled.
Key points from this information? Remember that the little triangle made of arrows doesn’t always indicate recyclability for all codes. Also, with such low percentages of all plastics being recycled, we should try to limit what we purchase in the first place.
Charts and graphs normally confuse me, but the American Plastics Council gives a nice breakdown of the codes, their description, and examples of products produced from them.
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