What were the radiation levels at Fukushima?

The accident was rated level 7 on the International Nuclear and Radiological Event Scale, due to high radioactive releases over days 4 to 6, eventually a total of some 940 PBq (I-131 eq). All four Fukushima Daiichi reactors were written off due to damage in the accident – 2719 MWe net.

How far did the radiation from Fukushima spread?

Last week, the IAEA found radiation exceeding its safety standards in a village 40 kilometers from Fukushima. It recommended that Japan extend the hazard zone but didn’t say by how much. Meanwhile, the United States, Britain, and Canada have recommended that its nationals keep a full 80 kilometers away from Fukushima.

Is Fukushima radiation reaching California?

As for Fukushima, other studies have found increased levels of radiation in the ocean and marine life off the Pacific coast of North America after the incident. …

What are safe radiation levels?

Adult: 5,000 Millirems. The current federal occupational limit of exposure per year for an adult (the limit for a worker using radiation) is “as low as reasonably achievable; however, not to exceed 5,000 millirems” above the 300+ millirems of natural sources of radiation and any medical radiation.

Is there radiation in the Pacific ocean?

There are natural radiation levels in the ocean and in beaches. We’ve tested shellfish collected from Pacific beaches in Washington for radiation and found extremely low levels, which is normal. There are natural radiation levels in the ocean and in beaches. However, nothing that would cause harm.

What level of radiation is unsafe?

To cause death within hours of exposure to radiation, the dose needs to be very high, 10Gy or higher, while 4-5Gy will kill within 60 days, and less than 1.5-2Gy will not be lethal in the short term. However all doses, no matter how small, carry a finite risk of cancer and other diseases.