The only thing that can be said about the short term effects of a nuclear accident is that there is the possibility that some one might suffer from radioactive poisoning.
There are a number of different types of nuclear accidents, and the only thing they all have in common is the presence of radioactivity. The numbers of different types are probably too numerous to list. Some types include:
Nuclear meltdown
Accidental loss of nuclear waste
Loss in transit of nuclear materials
Accidental distribution of radioactive materials
Accidental exposure to radioactive materials that were improperly disposed of
Accidents in laboratories or hospitals.
Industrial accidents involving radioactive materials.
etc.
The International Nuclear Events Scale (link below) rates nuclear accidents according to severity, from 0 (a below scale event of no significance) to 7 (wide spread off site impact).
The Chernobyl Disaster is the only accident so far to have been rated 7.
The Kyshtym Disaster is the only one rated number 6, and it was not at a nuclear power plant, but rather a reprocessing facility.
Two of the three accidents rated 5 were at nuclear power plants (including Three Mile Island). The other, however, happened because radioactive materials were improperly salvaged from abandoned medical equipment, resulting in the deaths of several people, who thought the dust that glowed blue in the dark was pretty and used it as a cosmetic (Goiânia accident).
A fair number of the so-called Radium Girls died, but they were not part of an accident that was rated because it preceded the term of the rating system. The short term effects were radiation poisoning, leading tot the deaths of several people.
A case of improper disposal of radioactive materials in New Jersey was also not rated. The materials were discovered because of cases of radiation poisoning leading to the deaths of three people. The site had to be cleaned up, a process on about the same scale as the decommissioning of a nuclear power plant.
The term "Broken Arrow" is used to indicate a nuclear accident involving a nuclear weapon that does't pose the threat indicated. The term "excursion" (as in nuclear excursion) or "criticality accident" is applied to a nuclear reactor or nuclear material accident, respectively.
Tokaimura nuclear accident happened in 1997.
lack of attention is a consequence of accident
The Chernobyl nuclear accident.
There are many ways a nuclear accident may occur, however most nuclear power plant accident occur due to problem in an reactor.
Those most at risk in a nuclear energy accident are the workers at the nuclear facility itself.
An accident is something that happens unexpectedly and unintentionally, typically resulting in damage or injury. A consequence is a result or effect of an action or condition. So an accident could have many consequences.
Three major nuclear accidents; namely:Three Miles Islands nuclear accident, USA, March 1979Chernobyl nuclear accident, Ukraine (former Soviet Union), April 1986Fukushima nuclear accident, Japan, March 2011
Nuclear power accidents are a disaster. The 1986 nuclear accident at the Chernobyl Nuclear Power Plant in Ukraine was a catastrophic accident.
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An nuclear bomb is purposefully release to pulse out damage. A nuclear accident, on the other hand, is an accident when a nuclear source (usually referring to a nuclear plant) either blows up or leaks. Although it is normally weaker and less dangerous than a nuclear bomb, a big enough explosion or a serious enough nuclear meltdown can break that limit.
In 1999, there was a nuclear accident at the Tokaimura uranium processing facility in Japan, which exposed dozens of workers to high levels of radiation. This accident resulted from a criticality accident during the processing of nuclear fuel.