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#red flag warning #hazard alert #risk indicator #problem signal #caution flag

☢️☣️⚠️

#trela #hazard alert #danger warning #caution #hazardous material #high-risk

☣️⚠️

#biohazard symbol #danger sign #hazard alert #biological risk

⚠️☢️🚨

#radiation warning #hazard alert #nuclear warning #radioactive zone #contamination warning #emergency signal