Fukushima Research Paper

realize that the plant was having an accident with the coolant level. The tubes holding the nuclear fuel began to melt since they became over heated which also caused fuel pellets to melt. Even though this was the most dangerous kind of nuclear accident, the radiation did not reach outside of the containment building nor did it release out into the environment. There were no immediate injuries or deaths reported from the raditation to the faculty workers.

This caused reactors 1 through 3 to go into a meltdown and it created a situation where Japan was on the brink of a major environmental disaster. To fully understand the different events there will be a focus on: factors that caused the meltdown, why this did not impact the other three reactors, the consequences, who is responsible and how these incidents can be prevented in the future. Together, these elements will highlight the underlying effects of this disaster and its impact on the region. ("Fukushima Accident")

The Fukushima disaster was caused by an earthquake and its following tsunami which caused a failure in the backup systems (World Nuclear Association, 2016). The tsunami knocked out the generators that powered the cooldown processes for three of the Fukushima power plants which caused the radiation leaks and other complications. Consequentially, the disaster was initially classified as a level 5 on the INES scale. Further investigation after the disaster was under control changed it to a level 7 disaster, the highest level on the INES scale. The estimated radioactive releases were about one tenth of Chernobyl, the worst nuclear disaster in history.

When an 9.0 magnitude earthquake rocked Japan on March 11th, 2011, it was the first of a series of horrific events that Japan would be forced to endure. Many homes, families, properties, and belongings were lost on that day. And when the tsunami rolled over the island, many believed that it was over for them. Not only had people’s lives been put in disarray and desolation, but there had not even been simple necessities available. Food. Water. Communications. And electricity. When the Fukushima Daiichi nuclear plant had been hit by the earthquake and tsunami, the reactors were shut down and so was the electricity. Over the course of months the reactors suffered, extreme heat, fires, hydrogen explosions, and radiation exposures. At the time,

Introduction: The Fukushima Daiichi nuclear disaster was the largest nuclear disaster since Chernobyl. It measured 7 on the Nuclear Event Scale, which is the highest rating. The Fukushima Daiichi nuclear disaster was initiated by a magnitude 9 earthquake. This earthquake caused a tsunami with waves reaching up to 133 feet to crash on the Fukushima Daiichi nuclear plant. This caused major damage to the nuclear plant. Workers were needed to keep this already terrible incident from escalading. The Fukushima Daiichi cleanup workers are

When the earthquake forced the reactors into shutdown, the cooling systems were overloaded with pressure. The site could no longer create its own power and the cooling systems relied merely off backup generators.

On the 11th of March, 2011, a 9.0-magnitude earthquake struck near the eastern coast of Japan. Emergency shutdown procedures went into effect when the earthquake was spotted, but this was not the main cause of the destruction of the nuclear reactor. The first line of defense was to immediately stop the nuclear fission within the reactor by inserting neutron absorbing rods to stop the reaction. After the engineers successfully stopped the nuclear fission reaction, immense heat and pressure was still prominent and needed to be relieved as soon as possible. Fresh water was brought in and dumped onto the rods but a tsunami inevitably followed as soon as the earthquake was felt as the source of the natural disaster was on the ocean floor. The tidal wave severely damaged the power supply system that was meant to maintain the flow was cold water. On March 12, 2011, diesel powered generators were initiated in an attempt to alleviate the failure of the generators that were powering the entire plant. Unfortunately, the diesel powered generator was insufficient enough to cool the large reactor as the heat building up within was accumulating in large amounts; more than what nuclear engineers originally presumed. Water continued to evaporate causing a hydrogen gas to form when the fuel rods underwent a chemical reaction with the steam. Hydrogen gas is an important element to take into consideration as too much of this element can cause an explosion within the reactor. Workers quickly

Then the question came up that how did the natural disaster occurred, man-made hazards with high technology, and heighten the risk to environmental health. Acceding to the Implications of the Fukushima Nuclear Disaster: Man-Made Hazards, Vulnerability Factors, and Risk to Environmental Health, first of all, the earthquake and tsunami exceeded estimations. Many international sources suggested that secondary technological is needed in order to estimate that incident. This Fukushima incident involved the first ever reactor core melt occurred by earthquake and tsunami. Since Fukushima is north part of japan by the ocean, many fish market and dealer were there, however, people started buying from them because of radiation. Radiation makes affect not only human. It is also effect environment and natural animals such as fishes. If you eat affected fish you will also get effect of radiation. The Fukushima disaster became a public debate emerge over the future desirability of nuclear power in Japan. Despite the growing anti-nuclear sentiment and concerns about the environmental risks of nuclear power, we contend that the continuing power of vested

Fukushima represents a catastrophe that had world wide implications for the nuclear power sector. On March 11, 2011, following a major earthquake, a 15 m tsunami hit the coast of Japan. This natural disaster caused a great deal of damage to the surrounding areas, but had a particularly dangerous effect on the Fukushima Daiichi Nuclear Power Station. In response to the initial earthquake, the operating units at Fukushima were automatically shutdown (Hindmarsh, 5). The 15 m tsunami, which hit the plant, flooded it under several meters of water. This combined caused the entire plant to suffer a complete power blackout. It was not believed that the plant would lose all power, nor that a tsunami of such size could occur (Hindmarsh 28). Resulting from the loss of power, existing cooling functions for the reactors were shut down also and as a result, fuel in the core was damaged, and radioactive material was released into the environment (Hindmarsh 12). Charles Perrow's Normal Accident Theory (NAT) proposes "a framework for characterizing complex technological systems such as air traffic, marine traffic, chemical plants, dams, and especially nuclear power plants according to their riskiness" (“Normal Accidents” 5). Perrow suggests that systems that are highly complex and tightly coupled create the environment for ‘normal accidents’ to occur; that is, accidents that are inevitable (“Normal Accidents” 88-89).

On March 11, 2011, a 9.0 magnitude earthquake damaged a large portion of the eastern coast of Japan and formed a tsunami that caused nuclear reactors to become unstable. These three nuclear reactors that became unstable, made an already devastated place turn into a very hazardous place to be. The tsunami alone did insurmountable damage to the buildings on the east coast, this also resulted in thousands of people’s deaths. The tsunami blocked multiple roads and highways, cut off water and electricity for millions of households, and created an unfortunate situation for the Fukushima Daiichi Nuclear Plants. The nuclear power plants and the tsunami created a national crisis in Japan

First a look at the effects on the biosphere, or all parts of the living earth. Life on earth was, and still is, dramatically affected by the disaster of Fukushima. The dangerous and harmful effects that hurt animals, marine life, and humans is observed and monitored both near and far from the

The impact from the accident at the nuclear power plant in Fukushima, Japan has had major biological effects that are still effecting people, animals and plants to this day.

Steam accumulated inside the reactor was no more utilized by the turbine and there was a spike in temperature of the nucleus of the reactor. Indeed, even the helper pumps were closed down for cleaning and this was the reason as why there was no water in the plant’s reactor. The engineers in the controller room quickly close the auto safety valve, however the administrators didn't understand that the help valve was blocked and it was not shut. They imagined that the core is protected by looking at the marker of emergency assistance valve in the controller room. Here the mishap happens, the administrators by eluding the pointer missed to weigh the genuine issue in the reactor. Because of the opening of emergency assistance valve, the cool water in the reactor spilled out through valve and this heated the plant and made reactor hotter. The water dripped from the open valve spilled into an adjacent building discharging radioactive gasses. Following a few hours' main pumps was worked to put water in the reactor and the reactor started to cool down. Later it came to realize that hydrogen air pockets were shaped on the interior of the plant. If it is exposed to the air, an expansive blast can happen and resulting in many deaths in Three Mile

On March 11th, 2011, the northern section of Japan was hit by a 9.0 magnitude earthquake, followed by a 15 meter tsunami, causing the death of over 15000 people. (Spacey) Even though the earthquake and the tsunami caused a tremendous amount of deaths in the northern region of Japan, the meltdown of the Fukushima nuclear power plant caused a severe damage to northern Japan’s ecosystem that people still cannot go back to their homes; despite it is 4 years after the disaster. After the earthquake, the tsunami destroyed the power supply used by Fukushima’s three nuclear power stations, causing severe levels of meltdown to be occurred inside the reactors in the timespan of 3 days. It was not until 2 weeks after the tragedy, when the reactors were finally stabilized, and took several months to approach what is called a “cold shutdown condition”, in which the fission in the reactors are completely stopped.(Fukushima A)

The disaster took place on April 1986, and was caused by inexperienced staff. When the power plant had to undergo a special test, to make sure that sufficient amount of cooling water would be supplied to the reactor in case of a power outage. However, the test had been delayed, because the national grid required the power output more than the expected time. Hence, the test was postponed after midnight where the night shift had to come. The night shift had little experience about such a test as most of them were electrical engineers rather than nuclear. On the other hand, the night shift had to perform the test before the grid needed the power again, otherwise they would have all been fined or fired. Consequently, lead to an unnecessary pressure on the personnel, which in turn increased the probability of making incorrect