The Dictionary of Environmental Science and Engineering, Second Edition
Polymeric materials.
When discarded, these constitute a significant part of the solid waste stream and are suitable for recycling. Plastics are labeled for recycling.
1 PET–Polyethylene terephthalate
2 HDPE – High density polyethylene
3 V – Vinyl
4 LDPE – Low density polyethylene
5 PP – Polypropylene
6 P – Polystyrene
7 Other
Some municipal recycling centers will accept only 1 and 2.
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