| polystyrene cup | 0.33 | Felt pretty chipper, as we scraped together enough coins to buy a shared polystyrene cup of milky tea. | ||
| polystyrene foam | 0.33 | This will be converted into multi-layer polystyrene foam egg cartons. | ||
| polystyrene plant | 0.26 | Production at the polystyrene plant was halted immediately. |