Plastic #6 (Polystyrene) - Lawrence Berkeley National Lab Waste Guide (2024)

The #6identifiesthe resin of the plastic which makes polystyrene, but the arrows around the number do not mean that it isrecyclable. This type of plastic is either hard of soft (foam, also known asStyrofoam). Both should go in the landfill.

Foam polystyrene,like that found in packaging, is made of mostly air. A special machine is required to remove the air and condense the material into a patty or block for resale. These foam products have little value because once the air is removed, very little materialremains.

The University of California has restricted vendors from using foam in packaging beginning in 2020 and it has been banned 116 cities acrossCalifornia.

Plastic #6 (Polystyrene) - Lawrence Berkeley National Lab Waste Guide (1)

Packaging Materials Are Not Recyclable

Packing peanuts and bubble wrap are plastic #6, so they are generally not recyclable. Yet there are many alternativesfor disposing of packaging material. Find out how to dispose ofpacking peanutsor bubble wrap.

Plastic #6 (Polystyrene) - Lawrence Berkeley National Lab Waste Guide (2)

Takeout Containers Are Not Recyclable

Styrofoam takeout containers are made from plastic #6, so they are generally not recyclable. Even where some styrofoam products are recycled, takeout containers are often not accepted because they are difficult to sanitize.

Plastic #6 (Polystyrene) - Lawrence Berkeley National Lab Waste Guide (3)

Pay Attention to Proper Disposal

Plastic #6 is a lightweight material that easily finds its way into the environment, where it can leach toxic chemicals.

Plastic #6 (Polystyrene) - Lawrence Berkeley National Lab Waste Guide (2024)
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