To my calculations. Across north america, The current exposure to radiation in the air is 1.28millisievert/hour. In 48 hours you been exposed to 61.44msv of radiation. In one year there is 8765 hours. 1.28msv/hr × 8765hr=11,219 milisievert or 11.219sievert. That is an extremely lethal dose of radiation. The radiation accumulates in your body, eventually you will die a painful death. The best way to counteract the radiation poisoning is to consume antioxidant. From tea's, spices and herbs. Antioxidant will stop the radioactive isotopes from oxidizing and releasing radiation. And will expel the radioactive isotopes from your body. And it would be a good idea, if you have the money to do so, get a good radioactive hazmat suit.