Posts Tagged 3 mile island朝日新聞社):Radiation from Fukushima exceeds Three Mile Island – English

Mr. Kan, it is getting worse (my emphasis):

Fukushima No. 1 nuclear plant, crippled by the Great East Japan Earthquake of March 11, has discharged more radiation than the infamous Three Mile Island nuclear plant in the United States, according to calculations by the central government.

It has already reached a level 6 serious accident on the International Nuclear and Radiological Event Scale (INES).

via朝日新聞社):Radiation from Fukushima exceeds Three Mile Island – English.

To calculate the spread of radiation using the System for Prediction of Environmental Emergency Dose Information, the Nuclear Safety Commission of Japan estimates the discharge rate for radioactive iodine per hour from the Fukushima plant based on radiation measurements taken at various locations.

Using those figures to make a simple calculation of the amount of discharge between 6 a.m. March 12 and midnight Wednesday results in figures between 30,000 and 110,000 terabecquerels. Tera is a prefix meaning 1 trillion.

The INES defines a level 7 major accident such as Chernobyl as one in which radiation of more than several tens of thousands of terabecquerels is released.

The Fukushima accident is already at a level 6, which is defined as having a radiation discharge of several thousands to several tens of thousands of terabecquerels.

The discharge of radioactive iodine at the Chernobyl accident was said to be about 1.8 million terabecquerels. The Three Mile Island accident, which was considered the second-worst accident until now, had only a limited discharge of radioactive iodine into the outside atmosphere, but was classified as a level 5 accident because of the considerable damage done to the core. Read the rest of this entry »

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Iodine for Radioactive Fallout by Donald W. Miller, Jr., MD

Iodine for Radioactive Fallout by Donald W. Miller, Jr., MD.

This is an excellent article to read if you are concerned about radioactive iodine. This is yet another excellent piece of information that was not written by a journalist and not propagate by mainstream media.

These grafs caught my attention:

Fallout from a nuclear bomb explosion or a nuclear power plant meltdown is full of radioactive iodine-131 (I-131). Nuclear fission splits the nuclei of uranium-235 and plutonium-239, producing I-131. The stable, natural isotope of iodine is iodine-127…

Radioactive I-131 emits Beta electrons and gamma rays, which destroy cells and cause cancer. People living downwind from a nuclear bomb explosion or power plant meltdown can inhale or ingest radioactive fallout, or have it come in contact with skin. The I-131 in fallout “dust” can damage the thyroid gland and cause it to become cancerous. Other tissues and glands in the body that concentrate iodine are also at risk, notably women’s breasts. The most common sequel from exposure to radioactive fallout is thyroid cancer.

Taken in a sufficient amount, natural iodine can block uptake of radioactive I-131 in fallout and prevent thyroid cancer…


In order to be effective in blocking I-131 uptake, the 100 mg dose of iodine needs to be taken in a window of 24 hours before and 2 hours after exposure to fallout (Health Physics 2000;78:660–667).

Consuming an average of 240 micrograms (mcg) of iodine a day, most Americans have an insufficient amount of iodine stored in their bodies…

Fortunately, this is the case with the Japanese. People in Japan eat a lot of seaweed, which protects them against the deleterious effects of I-131 in radioactive fallout from the meltdown of their Fukushima Dalichi nuclear plants. Compared to terrestrial plants, which contain only trace amounts of iodine (0.001 mg/gm), the seaweed that the Japanese consume – brown algai (kelp), red algae (nori sheets, with sushi), and green algae (chlorella) – have a high concentration of this nutrient (0.5–8.0 mg/gm). According to public health officials there, people in Japan consume 14.5 gm of seaweed a day. They don’t need to take potassium iodide tablets for fallout. They consume enough iodine in the seaweed they eat…

Chernobyl (April 26, 1986), until now, has been the only accident in the history of commercial nuclear power where radiation-related fatalities have occurred. The steam explosion and fire in this reactor, uncontained and lacking an emergency core-cooling system, released 5 percent of the reactor’s radioactive core into the atmosphere. Some 134 employees developed acute radiation sickness and 28 died from it. No increase in cancer incidence or mortality has been observed attributable to the ionizing radiation it released. Thyroid cancer is another matter. The explosion spread significant amounts of I-131, raising the incidence of thyroid cancer in children in the Ukraine from 0.7 per million to 4 per million. Dr. Arthur Robinson reckons that only 70 extra cases of thyroid cancer have arisen in children living near Chernobyl as a result of the accident, and these cancers could have been prevented had the Ukrainian authorities provided these children with iodine.

At Three Mile Island (March 28, 1979), a partial core meltdown was largely contained within the reactor building. No deaths resulted from the accident, and the amount of radiation released into the environment was the equivalent of a single chest X-ray for people living within ten miles of the reactor.

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