Estimates for the breakdown of Styrofoam in the environment range from 500 to 1 million years. Rather than degrade, it breaks into pieces.
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Recycling: How long does it take for styrofoam to decompose? - Quora
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STL City Recycles - #FastFactFriday: You read that right, styrofoam NEVER decomposes! đŸ¤¯ Styrofoam is harmful to the environment and our health. Skip the styrofoam takeout containers and cups as often as
Recycling: How long does it take for styrofoam to decompose? - Quora