• California’s Office of Environmental Health Hazard Assessment (OEHHA) has posted a fact sheet regarding styrene on its Proposition 65 warning website, also known as the Lead Agency Website.
  • OEHHA listed styrene as a carcinogen under Proposition 65 on April 22, 2016, and on May 4, 2017, the state adopted a No Significant Risk Level (NSRL) for styrene of 27 µg per day.
  • Despite stating that “the levels of such residual styrene in polystyrene food packaging materials are generally thought to be fairly low in most cases” when OEHHA issued styrene NSRL, the new fact sheet states, “Small amounts of styrene can be transferred to some food from polystyrene-based food-contact items such as drinking cups, plates, and other containers.” The fact sheet also states, “If possible, do not store or microwave food in polystyrene-based containers.”
  • The new fact sheet joins a chorus of other state and local laws and initiatives that discourage or ban the use of polystyrene food packaging materials.