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Experiments

Environmental results from experiments

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Experiments

  1. 1. Chernobyl disaster The Chernobyl disaster was a catastrophic nuclear accident that occurred on 26 April 1986 at the Chernobyl Nuclear Power Plant in the town of Pripyat, in Ukraine, which was under the direct jurisdiction of the central authorities of the Soviet Union. An explosion and fire released large quantities of radioactive particles into the atmosphere, which spread over much of the western USSR and Europe. Environmental Effects The Chernobyl nuclear power plant is located next to the Pripyat River, which feeds into the Dnieper reservoir system, one of the largest surface water systems in Europe and was still in spring flood when the accident occurred. In the most affected areas of Ukraine, levels of radioactivity in drinking water caused concern during the weeks and months after the accident. In small "closed" lakes in Belarus and the Bryansk region of Russia, concentrations
  2. 2. in a number of fish species varied from 100 to 60,000 Bq/kg during the period 1990–92. The contamination of fish caused short-term concern in parts of the UK and Germany and in the long term (years rather than months) in the affected areas of Ukraine, Belarus, and Russia as well as in parts of Scandinavia. Groundwater Groundwater was not badly affected by the Chernobyl accident since radionuclides with short half-lives decayed away long before they could affect groundwater supplies, and longer-lived radionuclides such as radiocaesium and radiostrontium were adsorbed to surface soils before they could transfer to groundwater. Flora and fauna After the disaster, four square kilometers of pine forest directly downwind of the reactor turned reddish-brown and died, earning the name of the "Red Forest". [122] Some animals in the worst-hit areas also died or stopped reproducing. Most domestic animals were removed from the explosion zone. The next
  3. 3. generation appeared to be normal. Toxic algae The last few years there has been an issue which concerns many scientists in the area of the Mediterranean sea. From the 1926 there have been two new kinds of algae in the sea. Scientists of course noticed them a bit later. So, it was determined that the first one was leaking out from the exhibition aquarium of Monaco by accident and it is called Caulerpataxifolia. The second one which is called Caulerparacemosa, has escaped from the Red Sea. These two kinds of algae are considered a threat to our environment because they are spreading extremely fast and because of they structure they cover every other kind of sea plant that is in their way. So the consequences are decrease of the biodiversity and overturn of the ecological balance. Greek newspaper ‘’To Vima’’
  4. 4. caulerpataxifolia caulerparacemosa Nevada’s Atomic bomb In 27 January 1951 at a dry lakebed in Nevada the first air dropped nuclear device was dropped for testing purposes. This test was a part of an American nuclear test series called Ranger which was consisted of five air dropped nuclear tests. In the 1963 Partial test ban treaty which banned all nuclear
  5. 5. tests in the atmosphere, underwater and in outer space was voted because of the obvious effects of radioactivity in people’s health. Until today the scale of harm is uncertain. Some specialists believe that the radioactivity is just a bit higher than normal when others claim that than phenomenon will grow stronger and stronger by increased cancer percentage and irregularities in people’s health and appearance. CTBTO preparatory commission
  6. 6. BOHPAL On 3 December 1984, a Union Carbide India Limited pesticide plant in Bhopal leaked around 32 tons of toxic gases which led to the worst industrial disaster to date. The official death toll was initially recorded around 4,000. A Madhya Pradesh government report stated 3,787 deaths, while other estimates state the fatalities were significantly higher from the accident and the medical complications caused by the accident in the weeks and years that followed. The impact of the disaster continues to this day in terms of psychological and neurological disabilities, blindness, skin, vision, breathing, and birth disorders. The soil and ground water near the factory site have been contaminated by the toxic wastes. The Bhopal disaster continues to be the part of the socio- political debate; the cleanup of environmental contamination and rehabilitation of those affected continues to challenge the people of Bhopal.
  7. 7. TOKAIMURA • Tokaimura nuclear accident indicates the nuclear disaster which occurred on 30 September 1999, resulting in two deaths. It was the worst civilian nuclear radiation accident in Japan prior to the Fukushima Daiichi nuclear disaster of 2011. • The criticality accident occurred in a uranium reprocessing facility operated by JCO (formerly Japan Nuclear Fuel Conversion Co.), a subsidiary of Sumitomo Metal Mining Co. in the village of Tōkai, Naka District, Ibaraki Prefecture. • Dozens of emergency workers and nearby residents were hospitalized and hundreds of thousands of others were forced to remain indoors for 24 hours; 39 of the workers were exposed to the radiation. At least 667 workers, emergency responders ,and nearby residents were exposed to excess radiation as a result of the accident. • The two technicians who received the higher doses, Ouchi and Shinohara, died several months later. The cause of the accident was said to be "human error and serious breaches of safety principles", according to the International Atomic Energy Agency. Question: • What other solutions do you suggest regarding the issue of overpopulation? Answer: • Better Education • Making People Aware of Family Planning • Tax Benefits or Concessions
  8. 8. • Knowledge of Sex Education • Minimize your consumption • Use contraception • Do all you can to protect the environment • Question: • What do you believe is the worst case/ future scenario that could potentially happen? • Answer: • Wars • Expansive energy sources • Scarce food and water • Feeding on lab-created foods • Rebellions

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