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13. Radiotherapy accident in Costa Rica. 1996. 114 patients received an overdose of radiation from a cobalt-60 source that was being used for radiotherapy. [13]: 299, 303. 11. Radiotherapy accident in Zaragoza, Spain. 1990 December. Cancer patients receiving radiotherapy; 11 fatalities and 27 patients were injured.
[citation needed] A study published in 2005 by the World Health Organization estimates that there may eventually be up to 4,000 additional cancer deaths related to the accident among those exposed to significant radiation levels. [24] Radioactive fallout from the accident was concentrated in areas of Belarus, Ukraine and Russia.
A 1 Gy dose of radiation will cause between 0 and 20 extra cases of perinatal mortality, per 1,000 births and 0-20 cases per 1000 births of severe mental sub-normality. A 0.05 Gy dose will increase death due to cancer 10 fold, from the normal 0.5 per 1000 birth rate to a rate of 5 per 1,000.
However, studies by the World Health Organization and Tokyo University have shown that no discernible increase in the rate of cancer deaths is expected. [13] Predicted future cancer deaths due to accumulated radiation exposures in the population living near Fukushima have ranged [14] in the academic literature from none [15] to hundreds. [12]
It is the only instance in commercial nuclear power history where radiation-related fatalities occurred. [9] [10] As of 2011, 15 childhood thyroid cancer deaths were attributed to the disaster. [11] The United Nations Scientific Committee on the Effects of Atomic Radiation estimates fewer than 100 deaths have resulted from the fallout. [12]
The Three Mile Island accident was a partial nuclear meltdown of the Unit 2 reactor (TMI-2) of the Three Mile Island Nuclear Generating Station on the Susquehanna River in Londonderry Township, near Harrisburg, Pennsylvania. The reactor accident began at 4:00 a.m. on March 28, 1979, and released radioactive gases and radioactive iodine into the ...
The reported health effects are consistent with high doses of radiation, and comparable to the experiences of cancer patients undergoing radio-therapy [15] but have many other potential causes. [14] The effects included "metallic taste, erythema, nausea, vomiting, diarrhea, hair loss, deaths of pets, farm and wild animals, and damage to plants ...
In the 53 municipalities subjected to less than 2 μSv/h, the detection rate ratio was considerably higher: 1.555 (1.096, 2.206). Therefore, it became evident that the radiation contamination due to the Fukushima nuclear power plant accidents is positively associated with the thyroid cancer detection rate in children and adolescents.