beware of carcinogens please. be careful of chemical hazards.,sign danger.

acid agent attention background beware biological carcinogen carcinogenic caution chemical chemistry corrosive damage danger dangerous death environment flammable gas harmful hazard hazardous health icon industrial industry information irritant label mask notice pictogram poison poisonous protection radiation risk safety security sign signal sticker substance symbol toxic toxicity vector warning yellow carcinogens please careful hazards please hazards danger