5īy 2005, it was reported that 15 of these thyroid cancer cases had been fatal. That would mean 4,808 thyroid cancer cases. UNSCEAR concluded that around one-quarter of these cases could be linked to radiation exposure. Over the period from 1991 to 2015, there were 19,233 cases of thyroid cancer in patients who were younger than 18 at the time of the disaster across Ukraine, Belarus, and exposed regions of Russia. In 2018, UNSCEAR published its latest findings on thyroid cancers attributed to the Chernobyl disaster. ![]() Increased screening, particularly in child populations, would result in finding many cases of cancer that would normally go undetected. It’s not uncommon for thyroid cancer cases to go undetected – and have no negative impact on an individual’s life. This is because there was a large increase in screening efforts in the aftermath of the disaster. Figuring out how many cases of thyroid cancer in this young population were caused by the accident is not straightforward. This exposure to 131I has not been linked to increased cancer risk in the adult population, but several studies have shown an increased incidence of thyroid cancer in those who were children and adolescents around this time. Radioactive fallout settled on pasture grass across the region this contaminated milk supplies and leafy vegetables that were consumed in the days immediately after the incident. However, the slow response to the disaster meant that some individuals were exposed to the short-lived radionuclide Iodine-131 ( 131I) through the contamination of milk. Most of the population was not exposed to levels of radiation that would put them at risk of negative health impacts.
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