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Essay on the effects of chernobyl
Reserch about chernobyl
Nuclear disaster in chernobyl cause and effect
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In the early morning of April 26th, 1986, two explosions tore through the Chernobyl nuclear power plant leaving behind nothing but rubble, nuclear fallout, and the infamy of what will probably long be called the worst nuclear disaster in history (World Nuclear Association, 2013). The cities of Chernobyl and Pripyat remain ghost towns due to extremely high levels of radiation still present 28 years after the explosion. The undeniable environmental effects of the blast couple with the severe health effects to earn the Chernobyl explosion its infamy. The Chernobyl power plant was built to satisfy a constant need for energy. The power plant was created to supply nearby cities—namely Pripyat and Chernobyl—with energy. Nuclear energy was a new alternative energy source that lightened the dependency on coal power plants. Nuclear reactors have many components. The reactor itself uses uranium-235 as fuel. Raw uranium ore contains only about 0.7% uranium-235 and must be enriched until it consists of about 5% uranium-235. The majority of uranium ore is uranium-238 which has a much longer half-life than uranium-235. The enriched uranium is then formed into pellets and placed into zirconium rods which are then assembled into bundles. These are called fuel rods and they are barraged with neutrons and then the uranium-235 turns into uranium-236—an extremely unstable atom—and shortly thereafter it splits into isotopes of krypton and barium. When the uranium splits it expels three neutrons which collide with other uranium atoms and in this fashion a chain reaction occurs once the reaction reaches critical mass. Critical mass is the point at which a chain reaction can be sustained without external interference. To control the nuclear reaction, co... ... middle of paper ... ...rom http://www.epa.gov/radiation/understand/health_effects.html Mousseau, T. A., & Møller, A. P. (2011). Landscape portrait: A look at the impacts of radioactive contaminants on Chernobyl’s wildlife. Bulletin of the Atomic Scientists, 67(2), 38-46. Mycio, M., (2013, March). How many people have really been killed by Chernobyl?. Retrieved from http://www.slate.com/articles/health_and_science/explainer/2013/04/ chernobyl_death_toll_how_many_cancer_cases_are_caused_by_low_level_radiation.html World Nuclear Association. (2013, June). Chernobyl accident 1986. Retrieved 20 January 2014 from http://www.world-nuclear.org/info/Safety-and-Security/Safety-of-Plants/Chernobyl-Accident/ World Nuclear Association. (n.d.) How a nuclear reactor makes electricity? Retrieved 20 Jan. 2014 from http://www.world-nuclear.org/Nuclear-Basics/How-does-a-nuclear-reactor-make-electricity-/
The engineers in Visit Sunny Chernobyl created a new frontier past the safety zone because they want to test the limits of the reactor. What the scientists didn’t account for is that fact that the reactors already had the potential of a dangerous chain reaction. (Blackwell 6) Consequently, their boundary destroying led to catastrophic consequences and the total annihilation of a land area because of massive radiation. Blackwell thought Chernobyl was so horrific he expressed that no one should visit without a “working understanding of radiation and how it’s measured” (Blackwell 7). These are some horrific consequences that followed from surpassing the
IPPNW. Only 50 Deaths Caused by Chernobyl? 20 Years after Chernobyl - The Ongoing Health Effects. 6 Apr. 2006. Web. 19 Mar. 2011. .
On April 26th, 1986, operators at the Chernobyl Power Plant in Chernobyl, Ukraine, ran what they thought to be a routine safety test. But fate was not on the side of these operators. Without warning, reactor #4 became unstable, as it had been operating at a low power for a possible shutdown and the reactor’s design caused it to be unsafe at this level of power. Internal temperatures rose. Attempts to cool the system produced the opposite effect. Instantly, the nuclear core surged with power. At 1:23 p.m., the reactor exploded. The first blast ripped off the reactor's steel roof. The second blast released a large plume of radiation into the sky. Flames engulfed the building. For ten long days, fire fighters and power plant workers attempted to overcome the inferno. Thirty-one of them died of radiation poisoning. Chernobyl was the worst nuclear disaster in history. It unleashed radiation hundreds of times greater than the atomic bombs exploded over Japan during World War II. [1]
When the atoms are arranged in a reactor, the splitting of an atom will cause nearby atoms to split, forming a chain reaction. As the energy is released, it is sent through coolant tanks full of water, which is then heated into steam. The steam is channeled and used to spin a turbine, which in turn powers a generator, producing electricity (whatisnuclear.com, Nuclear Reactors). Despite this, many still fear events such as this.
Chernobyl, one word that still strikes pain and fear in the hearts of many, even after 28 years is still causing serious damage. It was largest nuclear disaster ever, Chernobyl was “. . . about 400 times more potent than the bomb dropped on Hiroshima during World War II . . .” (Walmsley “26 years on: helping Chernobyl's children”). The disaster was not immediately seen as a large threat, and this is why so many lives were taken or destroyed.
Hopefully, with accurate analysis and innovation, my research will teach the world of its past so this disaster doesn’t occur in the future. B - Summary of Evidence Chernobyl (chrn byl) is an uninhibited city in north Ukraine, near the Belarus boundary, on the Pripyat River. Ten miles to the north, in the town of Pripyat, is the Chernobyl nuclear powerstation, site of the worst nuclear reactor disaster in history ("Chernobyl", Columbia Encyclopedia). To specify, on April 26, 1986, Unit Four of the Chernobyl nuclear reactor exploded in Ukraine, injuring human immune systems and the genetic structure of cells, contaminating soils and waterways. Nearly 7 tons of irradiated reactor fuel was released into the environment—roughly 340 million curies.
Chernobyl was the greatest nuclear disaster of the 20th century. On April 26th, 1986, one of four nuclear reactors located in the Soviet Union melted down and contaminated a vast area of Eastern Europe. The meltdown, a result of human error, lapsed safety precautions, and lack of a containment vessel, was barely contained by dropping sand and releasing huge amounts of deadly radioactive isotopes into the atmosphere. The resulting contamination killed or injured hundreds of thousands of people and devastated the environment. The affects of this accident are still being felt today and will be felt for generations to come.
The Chernobyl meltdown was one the biggest meltdowns of the decade, the implications of Chernobyl didn’t just resonate in Russia, but the uranium contamination was found all across Europe. Sheep farmers from North Cumbria were affected by the radiation contamination. After the contamination, scientists came to help the farmers who were affected. Our presentation on the article also discussed the broader implications for the public understanding of science and how the deficit model failed in the article. The deficit model was used to discuss the problems with science and the lay people. The public’s negative attitude towards science is because of their ignorance towards it and the remedy was to dumb down the information to the lay people. This article discusses how both science and the lay people were misunderstanding each other. This was through miscommunication and standard view of the public understanding of science which lead to people to initially trust everything the scientists would say.
Flanary, W. (2008). Environment effects of the Chernobyl accident. Retrieved November 1st, 2013 from /http://www.eoearth.org/view/article/152617
To begin, nuclear power is produced by nuclear fission, which is the splitting of an atom to start a chain reaction (“11 Facts”). This chain reaction produces massive amounts of heat. Nuclear reactors take advantage of this heat by pumping water into the reactor, which in turn produces steam. The steam then becomes pressurized through a pipeline and exits into a turbine (“How do Nuclear”). The pressurized steam causes the turbine blades to spin, producing power which is linked to a generator for use in the main power lines. When the steam passes the turbine blades, it goes past cooled pipes and condensates (“How do Nuclear”). After the condensation process is finished and the steam reverts back to water, it is pumped into the reactor again, thus completing the process of producing nuclear-based power.
One of the most significant environmentally damaging instances in history was the Chernobyl incident. In 1986, the Chernobyl Nuclear Plant in Ukraine exploded. It became one of the most significant disasters in the engineering community. There are different factors that contributed to the disaster. The personnel that were tasked with operating the plant were unqualified. The plant’s design was a complex one. The RBMK reactor was Soviet design, and the staff had not be acquainted with this particular design. As the operators performed tests on the reactor, they disabled the automatic shutdown mechanism. After the test, the attempt to shut down the reactor was unsuccessful as it was unstable. This is the immediate cause of the Chernobyl Accident. It later became the most significant nuclear disaster in the history of the
The use of nuclear power in the mid-1980s was not a popular idea on account of all the fears that it had presented. The public seemed to have rejected it because of the fear of radiation. The Chernobyl accident in the Soviet Union in April of 1986 reinforced the fears, and gave them an international dimension (Cohen 1). Nevertheless, the public has to come to terms that one of the major requirements for sustaining human progress is an adequate source of energy. The current largest sources of energy are the combustion of coal, oil, and natural gas. Fear of radiation may push nuclear power under the carpet but another fear of the unknown is how costly is this going to be? If we as the public have to overcome the fear of radiation and costly project, we first have to understand the details of nuclear energy. The known is a lot less scary then the unknown. If we could put away all the presumptions we have about this new energy source, then maybe we can understand that this would be a good decision for use in the near future.
The first hypothesis proposed that “mammal abundances are negatively correlated with levels of radioactive contamination at Chernobyl” (Deryabina et al., 2015). To test this hypothesis, the researchers conducted censuses of the large mammal populations by observing tracks in fresh snow along walking routes. The track surveys were conducted shortly after snowfall on a single day in February with only fresh tracks counted, counting the number of tracks of each species on each route with a total distance of 315 kilometers and an average track length of nine kilometers. This method of data collecting did not provide absolute density information of the mammal populations, but provided data on relative mammal activity. The researchers compared average track counts per ten kilometers to compare different routes within the reserve in terms of animal activity.
On April26, 1986, the nuclear power plant was exploded in Chernobyl, Ukraine. At 1:23 AM, while everyone were sleeping, Reactor #4 exploded, and 40 hours later, all the city residence were forcefully moved to other cities, and they never return to their home. The Chernobyl disaster is ranked the worst nuclear accident. The Chernobyl nuclear power plant was ran by the Soviet Union central nuclear energy corporation. (International Atomic Energy Agency-IAEA, 2005)
Nuclear energy is generated by a process called fission. Fission occurs within the reactor of a nuclear power plant when a neutron is fired at an atom of uranium causing it to split and release subsequent neutrons.1 These are able to crash into other uranium atoms causing a chain reaction and releasing a great deal of heat energy.