Polystyrene

Polystyrene is a plastic made from the styrene monomer. Most people know it under the name Styrofoam, which is actually a type of polystyrene and a registered trademark of Dow Chemical. It's a lightweight material, about 95% air, with insulation properties and is used in all types of products from cups to packaging material. It is a threat to Long Island Sound because it is made with petroleum, a non-sustainable, heavily polluting and disappearing commodity and the product does not biodegrade. It crumbles into fragments that have no expiration date. That is why once it reaches the Sound; it can remain a threat to aquatic animals forever.