A study published last week by the World Health Organization on the health risks associated with the disaster at the Fukushima Daiichi Nuclear Power Plant suggested that the risk for certain types of cancers had increased slightly among children exposed to the highest doses of radioactivity, but that there would most likely be no observable increase in cancer rates in the wider Japanese population.
The study, which capped off a comprehensive, two-year analysis of the estimated doses of radioactivity from the 2011 Fukushima accident and their potential risks, also warned that the disaster’s psychological impact could have a consequence on health, and called for continued monitoring and health screenings for populations most exposed to the radiological fallout.
The study’s authors warned, however, that their assessment was based on limited scientific knowledge; much of the scientific data on health effects from radiation is based on acute exposures like those that followed the bombing of Hiroshima and Nagasaki and not chronic, low-level exposure. In Japan, some densely populated areas are expected to remain contaminated with relatively low levels of radioactive materials for decades.
“Because scientific understanding of the radiation effects, particularly at low doses, may increase in the future, it is possible that further investigation may change our understanding of the risks of this radiation accident,” the report said.
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