Biohazard

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