No mobile phones

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