Polystyrene (PS) (pron.: /ˌpɒliˈstaɪriːn/) is a synthetic aromatic polymer made from the monomer styrene, a liquid petrochemical.
Found in: Disposable plates and cups, meat trays, egg cartons, carry-out containers, aspirin bottles, compact disc cases
Recycling: Number 6 plastics can be recycled through some curbside programs.
Recycled into: Insulation, light switch plates, egg cartons, vents, rulers, foam packing, carry-out containers