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What's the deal with polystyrene?
Posted on Wednesday, May. 12, 2010
On Earth Day, Palo Alto issued an ordinance that restricts food vendors from providing take out containers that are made from expanded polystyrene or non-recyclable plastic. This ordinance affects a broad umbrella of food service vendors such as retail food vendors, cafeterias, outdoor food vendors, food vehicles, and caterers. While the ordinance applies to containers, it does not apply to straws, utensils, or hot cup lids. These vendors are expected to comply within a one year period.
What is Polystyrene?
Polystyrene is an inexpensive and commonly manufactured plastic; companies make items like clear disposable cups, razors, and CD cases out of polystyrene. The take-out containers in question are made of expanded polystyrene foam, and are of the same material as packaging peanuts and insulation. While this product is very similar to what is commonly known as Styrofoam, it is different because of its beaded texture.
What is the problem with it?
While this foam is good at keeping your food hot or cold, it causes a number of significant issues for ecosystems. What makes it convenient and durable for humans is what makes it so problematic for the environment; it is lightweight, it floats, and it can easily break into smaller pieces from factors like wind and sun. When these pieces break down, they can be mistaken for food by marine and land animals. It is non-biodegradable, so it will not break down in the environment like plants and other compostable matter. Even though some recycling companies will accept the plastic (polystyrene is the #6 recycling category), the expanded foam that is contaminated by food is nearly impossible to recycle. So, most containers either wind up in landfills or as litter; polystyrene containers are currently the second most abundant form of beach debris in California due to their common and widespread use. Finally, some scientific studies suggest that styrene is a harmful carcinogen to both humans and animals.
What can I do?
If you're not in an area that bans polystyrene, you still have options. Invest in some reusable containers, or if the place offers it, get a paper container instead (like when you get frozen yogurt at Frozo's). Even though the ordinance is exclusive to expanded polystyrene, Styrofoam is no better. Avoid it when you can! While Bon Appetit offers compostable to-go containers, you can do one step better and sign up for our Eco-Clamshell program.
1. Sign up at Market Square. If you're a faculty/staff member, you can do this at Adobe Lodge as well. Bring your campus ID and a refundable ten dollar deposit. You'll be given a keychain to exchange for your first EcoTray.
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