For a demonstration of the convoluted lengths the UN has gone to in order to blame health effects on anything but radiation, see the diagram on page 13 of the UN report Sources and Effects of Ionizing Radiation (2008). Many of these ailments have been explained away by the UN as effects of the economic decline that began after the catastrophe, which lead to depression, smoking and alcohol abuse. The Soviet Union collapsed and decreasing health and longevity became the norm across all the former Soviet territories. The UNSCEAR reassures the world this way:
The IAEA didn’t tell the world many things that every nuclear specialist knew with certainty in the first days of the crisis. They could have told the world directly that there were sure to be three full meltdowns. They could have told the Japanese government to look for hot spots outside the arbitrary, circular evacuation zone. They could have recommended a precautionary evacuation of children from a wider area. They could have told the Japanese government to tightly monitor animal feed and food distribution, and tell farmers not to plant crops this season. They could be telling the Tokyo City government right now to abandon its foolish plan to burn highly radioactive sewage waste. The IAEA has been worse than useless because it has done nothing while giving a false impression that adult supervision arrived to handle the crisis.