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   Chernobyl Nuclear Disaster

On April 25th -26th, 1986 the World's worst nuclear power accident occurred at Chernobyl in the former USSR (now Ukraine). The Chernobyl nuclear power plant located 80 miles north of Kiev had 4 reactors and whilst testing reactor number 4 numerous safety procedures were disregarded. At 1:23am the chain reaction in the reactor became out of control creating explosions and a fireball which blew off the reactor's heavy steel and concrete lid.

The Chernobyl accident killed more than 30 people immediately, and as a result of the high radiation levels in the surrounding 20-mile radius, 135,00 people had to be evacuated.



Health & Psychological Consequences Of Chernobyl

Health Effects






 Both sets of figures are based upon a Ukrainain study in CANCER published on 1st July 1999.


30 lives were lost during the accident or within a few months after it. Figures from the Ukraine Radiological Institute suggest that over 2,500 deaths were caused by the Chernobyl accident.

Psychological Consequences

There have been significant increases in psychological health disorders and incidence such as:

These were a result of the lack of public information available after the accident, the stress and trauma of evacuation and concerns of the people affected and about their children's health. Furthermore there is much understandable scepticism over official statements as people were not told the truth until several years after the accident.



Chernobyl Quiz

1. In which month and year did the Chernobyl accident occur?
April 1986
June 1986
April 1985
2. Between 1981 - 1985, the five years preceding the accident, the average thyroid cancer rate in Ukrainian young children (birth to 15 years) was:
16-17 incidents per million
10-16 incidents per million
4-6 incidents per million
3. After the accident between 1986 - 1997 how many incidents of Thyroid Cancer were reported per million, again in Ukrainian young children (birth to 15 years)?
45 incidents per million
20 incidents per million
10 incidents per million
4. As a result of the high radiation levels in the surrounding 20-mile radius how many people had to be evacuated?
200,00 people had to be evacuated.
250,00 people had to be evacuated
135,00 people had to be evacuated.
5. What type of reactor was used at Chernobyl?
6. Which of the following is NOT a Social, Economic & Political consequence of Chernobyl?
The Birth rate has decreased
The work force has migrated to uncontaminated areas resulting in a shortage of labour and professional staff
Lethal doses of radiation were reached particularly for coniferous trees and small mammals
7. Who was the president of the USSR at the time of the Chernobyl disaster?
Milkhail Gorbachev
John Major
Margaret Thatcher
8. How many reactors are there at the Chernobyl nuclear power plant?
9. Which reactor became out of control?
Reactor 1
Reactor 3
Reactor 4
10. Which of the following problems do RMBK reactors suffer from?
Positive Void Coefficient
Negative Void Coefficient
None of the above

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