מאוד האפוטרופוס בלבול is polystyrene safe משולש לונדון חוץ מזה
Amazon.com: Danger Do Not Handle Without Wearing Safety Shield Or Safety Glasses OSHA Sign, 24x30 Inches, 55 mil thick HDPS (high density polystyrene), Made in USA by Sigo Signs : Industrial &
Polystyrene - Wikipedia
Is Styrofoam Safe? - Ask Dr. Weil
Truth About Polystyrene Food Packaging And The Environment
Why is Polystyrene/Styrofoam Not Recyclable?
How toxic is styrofoam? - Quora
Polystyrene is safe for food in solid state, less so otherwise | UCLA Health