関連ワード:  is styrofoam dangerous if swallowed    is polystyrene dangerous if swallowed    is styrofoam harmful if swallowed    is styrofoam toxic if swallowed    is styrofoam toxic if eaten    can styrofoam kill you if you eat it    what to do if you swallow styrofoam  
結果 : is styrofoam dangerous if swallowed