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Percentage abundances of identified shapes (A), colours (B), dimensions (C), and polymer matrices (D). PE: polyethylene; PVC: polyvinyl chloride; PP: polypropylene; CPE: chlorinated polyethylene; PVOH: polyvinyl alcohol; PEVA: poly(ethylene-co-vinyl acetate); PEMA: poly(ethyl methacrylate); ABS: acrylonitrile butadiene styrene; PES: polyester; PA: polyamide; PC: polycarbonate; PS: polystyrene, and NC: nitrocellulose.
