World Nuclear Association: Chernobyl Report

http://www.world-nuclear.org/info/chernobyl/inf07.html

• The Chernobyl accident in 1986 was the result of a flawed reactor design that was operated with inadequately trained personnel. 
• The resulting steam explosion and fires released at least 5% of the radioactive reactor core into the atmosphere and downwind. 
• Two Chernobyl plant workers died on the night of the accident, and a further 28 people died within a few weeks as a result of acute radiation poisoning. 
• UNSCEAR says that apart from increased thyroid cancers, "there is no evidence of a major public health impact attributable to radiation exposure 20 years after the accident." 
• Resettlement of areas from which people were relocated is ongoing.