Biohazard

🚱 non-potable water ☢ radioactive ☢️ radioactive 🚫 prohibited ⚠ warning 🚳 no bicycles ☣️ biohazard ⛔ no entry 📵 no mobile phones 🚷 no pedestrians 🚸 children crossing 🚭 no smoking 🔞 no one under eighteen 🚯 no littering ⚠️ warning