Biohazard

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