Biohazard

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