Found in: Citrus juice bottles, sunglasses, phone cases and other items with mixed, custom packaging. Recycling symbol #7 is a catch-all for all other types of plastic. You may see this on some ...

Polypropylene is a type of plastic used to ... inside the recycling triangle symbol. Polypropylene is commonly used in many different applications, including: Packaging materials.

Jamie Hailstone is a U.K-based reporter, who covers sustainability. There was a time when plastic foam foodware packaging - commonly known as Styrofoam - was a regular sight at music festivals ...