Biohazard

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