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Chernobyl Nuclear disaster

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by

Jan Cheung

on 12 November 2013

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Transcript of Chernobyl Nuclear disaster

Type of hazard & what makes the event a disaster:
The hazard- being the nuclear power plant Chernobyl in Ukraine, was turned into a disaster by the operation failure of the plant.
Another aspect that makes this event a disaster rather than a hazard is the damage on property and people- the event was the cause of widespread diseases such as cancers from the radioactive substances that were spread internationally.
Chernobyl disaster is a nuclear disaster.
Chernobyl Nuclear Hazard
Ukraine (Ukrainian Soviet Socialist Republic) located in Europe, in the Northern and Eastern hemispheres.
Latitude and Longitude: 51.3896° N, 30.0991° E
Describe the incident/accident
The April 1986 disaster at the Chernobyl nuclear plant in Ukraine was a result of a flawed reactor design and serious mistakes from the plant operators.
Engineers at Chernobyl began an experiment to test a cooling system in reactor 4 and intentionally disengaged many safety systems in order to carry out this experiment.
But, the experiment went terribly wrong, and fuel pellets in the core began to explode.
The event caused the deaths of 30 operators and firemen within the first three months, and several further deaths later.
Chernobyl measured level 7 in international Nuclear event scale, meaning it was a major accident.
Chernobyl Nuclear Disaster
Impacts?
Impacts on Human:
Impacts on Environment:
International Spread of radioactive substance
Cancer
Other health disorders (Radiation exposure, mental health
Deaths (Radiation exposure, cancer)
Radioactive substance in atmosphere, ground water, trees, rain, rivers and lakes etc.
The after-effects were expect to be seen in 100 years after the accident
Management strategies
The reason this accident was so catastrophic is because the government decide to cover the accident, and pretend it did not happen, while the radiation was spreading throughout the country and causing harm to a lot of people.
The government didn't evacuate people from the plant until 2 days after the explosion, which contributed to why it costed so many lives, and I think this is a fatal mistake that the government made.
Changes to management practices?
In an attempt to contain the radioactive substances, a box was made around the reactor to keep it from spreading.
Most countries decided to face the fact that nuclear power is not safe, and can cause a lot of lives to be lost and a huge economical impact.
Engineers built and experimented with a lot of back up systems to make sure the back up system was good in the reactor, and could operate when needed.
Many countries placed radiation readers throughout their countries to alarm them and other countries if a nuclear event was to occur.
Evacuation plans were put into place for anyone who lived near the nuclear reactor.
Some countries even decided to stop using nuclear reactors after this disaster.

Was the disaster avoidable?
Although technology, science and engineering has allowed safety in nuclear power plants to be improved, seat belts only work if you use them.

If scientists hadn't disengaged so many of the safety measures, it is believed that this event, the worst nuclear disaster in history, could have potentially been avoided.



Bibliography
http://www.world-nuclear.org/info/Safety-and-Security/Safety-of-Plants/Chernobyl-Accident/#.Unhp8oC4Zjo
http://news.bbc.co.uk/2/shared/spl/hi/guides/456900/456957/html/nn2page1.stm
http://www.nrc.gov/reading-rm/doc-collections/fact-sheets/chernobyl-bg.html
http://www.livescience.com/9959-avoidable-disasters-major-deadly-human-screw-ups.html
http://en.wikipedia.org/wiki/Chernobyl_disaster
http://www.google.com.au/search?q=chernobyl+nuclear+disaster
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