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The Chernobyl Disaster
Dátum pridania: | 20.01.2004 | Oznámkuj: | 12345 |
Autor referátu: | Fbaranik | ||
Jazyk: | Počet slov: | 2 726 | |
Referát vhodný pre: | Stredná odborná škola | Počet A4: | 9.3 |
Priemerná známka: | 3.00 | Rýchle čítanie: | 15m 30s |
Pomalé čítanie: | 23m 15s |
He in turn relayed this information to the Soviet Government, who then evacuated the neighboring city of Pripjat.
April 28: After 8 PM, disaster information is transmitted by means of short message TASS to the world.
May 1: In Gomel, Kiev and the cities surrounding Chernobyl, people are celebrating May First, a Communist holiday. The Government asserts, that everything is OK.
May 2: The firefighters exhausted all the water from storage under the reactor. Every one receives a bonus of 1000 Rubles.
May 4: They pump liquid nitrogen into sinkholes under the reactor in an attempt to freeze the ground.
May 5: The day started with a large leak of radiation. 3. Situation after disaster and first fatalities
In a moment, a nuclear explosion killed two people: the first one was killed in the explosion, and the other person burned to death.
Also, many fireman and solders who sacrificed their lives.
No one knows what radiation is, and what the effect is. The fireman used water to try and extinguish the fire, which was up to 67,600ْ F, so once water came into contact with hydrogen and oxygen, it exploded. For three hours following water is dumped down on the next reactors, and especially on the third reactor, which was shut down after four hours. Around the reactor there were pieces of graphite from the central nucleus. People who lived 15 minutes away died from this area died of radiation effects. Out of 400 employers, 33 people died and 28 showed effects of radiation, and 3 were injured from the explosion. Two hundred, three people from an area of 30 miles around power electric plant died as a result of radiation induced illnesses. One-hundred and sixteen thousand people were evacuated from their homes. The cost of train ticket from Chernobyl to Moscow rose from 15 rubles to 100 rubles a more.
intended for 10 days, more than 50 millions of Curie radiations were emitted from the damaged reactors. (5% of all radioactive substances in reactor)
A Curie (CI) is a base value of unit of radiation. One Curie is 37 million units of radiation substances the whole 1 second. Fifty million Curies are equal to a release of 1,000,000,000,000,000,000 units of radiation. 4. Situation today
Today, the broken reactor from Block 4 of the Chernobyl power electric plant is covered under a large sarcophagus of steel and cement. It cost 2 milliard dollars. Every 40 years it is to be replaced to protect from leakage. Around the power electric plant are zones. The first one is 10 miles, and second is 30 miles, owned officially by the state. The inside zone is totally prohibited for anything that moves. The second zone has been continually being worked on to decontaminate the ground since 1986.
Zdroje: www.physics.mumi.cz/~blazkova/Radiace2.htm, www.pes.internet.cz/europes/hledani/st_nahled.php3?wid=2&cid=22468&rid=72&prid=..., www.ecn.cz/env/temelin/c11/Zdravi.htm, www.ecn.cz/env/temelin/c11/Radiace.htm, www.infoukes.com/history/chornobyl/elg/, www.calguard.ca.gov/ia/Chernobyl-timeline.htm, www.pbs.org/wgbh/pages/frontline/shows/reaction/readings/chernobyl.html, www.ukrembassy.sk/slovenc/about/economy.htm, www.physics.muni.cz/~blazkova/Reaktor6.htm, www.worldprocessor.com/171.htm, www.idea.org, www.volny.cz/kostka2000/Cernobyl.htm#Nemocizozareni, www.sweb.cz/radioaktivita.cz/cernobyl.htm, www.radiace.fbi.cz/je/je.html, www.belarusembassy.cz/en/index.shtm, www.ekologie.aktualne.cz/temata/chernobyl/chernobyl.htm, www.lcweb.loc.gov/exhibits/archives/cher.html, www.ccp-intl.org/images.html, www.ecn.cz/env/temelin/c11/Dnes.htm#První%20navrátilci, www.ecn.cz/env/temelin/c11/Radiace.htm, www.ecn.cz, www.eklist.cz/index.stm, www.chernobyl.com, www.britannica.com, www.chernobyl.co.uk, www.un.org/ha/chernobyl, www.nc25.troja.mff.cuni.cz/~dolejsi/fkn/Kap4-35.htm, www.ohz.cz/index.html, www.putnik.cz, www.rehurek.cz/gbr/index1.html, www.TiscaliTechnologie.htm, www.greenpeace.sk