Chernobyl: danger sign near the atomic reactor (00:00:43)
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Chernobyl: Nuclear reactors

The Chernobyl disaster was a nuclear accident of catastrophic proportions that occurred on 26 April 1986, at the Chernobyl Nuclear Power Plant in Ukraine (then in the Ukrainian Soviet Socialist Republic, part of the Soviet Union). It is considered the worst nuclear power plant accident in history and is the only level 7 event on the International Nuclear Event Scale.

The disaster occurred on 26 April 1986, at reactor number four at the Chernobyl plant, near the town of Pripyat, during an unauthorized systems test. A sudden power output surge took place, and when an attempt was made at an emergency shutdown, a more extreme spike in power output occurred which led to the rupture of a reactor vessel as well as a series of explosions.

This event exposed the graphite moderator components of the reactor to air and they ignited; the resulting fire sent a plume of radioactive fallout into the atmosphere and over an extensive area, including Pripyat. The plume drifted over large parts of the western Soviet Union, and much of Europe. As of December 2000[update], 350,400 people had been evacuated and resettled from the most severely contaminated areas of Belarus, Russia, and Ukraine.

According to official post-Soviet data, up to 70% of the fallout landed in Belarus. Despite the accident, Ukraine continued to operate the remaining reactors at Chernobyl for many years. The last reactor at the site was closed down in 2000. The accident raised concerns about the safety of the Soviet nuclear power industry as well as nuclear power in general, slowing its expansion for a number of years while forcing the Soviet government to become less secretive about its procedures. Russia, Ukraine, and Belarus have been burdened with the continuing and substantial decontamination and health care costs of the Chernobyl accident.

A 2006 report prepared by the Chernobyl Forum, led by the World Health Organization (WHO) states, "Among the 134 emergency workers involved in the immediate mitigation of the Chernobyl accident, severely exposed workers and firemen during the first days, 28 persons died in 1986 due to ARS (Acute Radiation Syndrome), and 19 more persons died in 1987-2004 from different causes. Among the general population affected by Chernobyl radioactive fallout, the much lower exposures meant that ARS cases did not occur". It is estimated that there will ultimately be a total of 4,000 deaths attributable to the accident, due to increased cancer risk.

Keywords:

hazard Emergency risk nuclear power nuclear reactions nuclear fission radiation nuclear energy Soviuet Union nuclear disaster Pripyat radioactive Shots from car nuclear threat Tablet danger sign ruins energy Chernobyl Nuclear Power Plant Nuclear Crisis Chernobyl atomic power disaster nuclear reactors ukraine

Arabic :

تشيرنوبيل، أوكرانيا، الاتحاد صفوت، والمفاعلات النووية، والكوارث النووية، الإشعاع، أنقاض، ومحطة تشيرنوبيل للطاقة النووية، بريبيات، المشعة، الكوارث، الخطر، الأزمة، الطوارئ، خطر، والطاقة النووية، والطاقة، والطاقة النووية والطاقة النووية، الطاقة الذرية، النووية ردود الفعل، والانشطار النووي، لقطات من السيارة، والتهديد النووي الكمبيوتر اللوحي، علامة خطر،,

Bulgarian :

Чернобил, Украйна, Soviuet съюз, ядрени реактори, ядрената катастрофа, радиация, руини, Чернобилската атомна електроцентрала, Припят, радиоактивни, катастрофа, опасност, криза, спешни, риск, ядрената енергия, енергия, ядрената, ядрена енергия, атомна енергия, ядрената реакции, Ядрено делене, снимки от кола, ядрена заплаха таблет, знака за опасност, ,

Catalan :

Txernòbil, Ucraïna, Unió Soviuet, reactors nuclears, la catàstrofe nuclear, radiació, ruïnes, Nuclear de Txernòbil, Pripyat, radioactiu, desastre, perills, Crisis, emergència, risc, energia nuclear, energia, energia nuclear, nuclear, energia atòmica, nuclear les reaccions, la fissió nuclear, preses de cotxe, l'amenaça nuclear Tablet, senyal de perill, ,

Chinese Simplified :

切尔诺贝利, 乌克兰, Soviuet 联盟, 核反应堆, 核灾难, 辐射, 废墟, 切尔诺贝利核电厂, 普里皮亚季, 放射性, 灾害, 危险, 危机, 紧急情况, 风险, 核能, 能源, 核, 核电, 原子能, 核反应, 核裂变, 汽车射击, 核威胁片, 危险迹象, ,

Chinese Traditional :

切爾諾貝利, 烏克蘭, Soviuet 聯盟, 核反應爐, 核災難, 輻射, 廢墟, 切爾諾貝利核電廠, 普裡皮亞季, 放射性, 災害, 危險, 危機, 緊急情況, 風險, 核能, 能源, 核, 核電, 原子能, 核反應, 核裂變, 汽車射擊, 核威脅片, 危險跡象, ,

Czech :

Černobylu, Ukrajina, Soviuet unie, jaderných reaktorů, jaderná katastrofa, záření, ruiny, černobylské jaderné elektrárny, Pripjať, radioaktivní, katastrofa, nebezpečí, krize, Emergency, riziko, jaderná energie, energie, jaderné, jaderná energie, atomové energie, jaderné reakce, jaderného štěpení, záběry z auta, jaderné hrozby Tablet, nebezpečí znamení, ,

Danish :

Tjernobyl, Ukraine, Soviuet Union, atomreaktorer, atomulykken, stråling, ruiner, Tjernobyl atomkraftværket, Pripyat, radioaktivt, katastrofe, fare, krise, nødsituation, risiko, nuklear energi, energi, nuklear, nuclear power, atomkraften, nukleare reaktioner, nuklear fission, skud fra bil, atomtrussel Tablet, fare tegn, ,

Dutch :

Tsjernobyl, Oekraïne, Soviuet Unie, kernreactoren, kernramp, straling, ruïnes, de kerncentrale van Tsjernobyl, Pripyat, radioactief, ramp, gevaren, Crisis, Emergency, risico, nucleaire energie, energie, nucleaire, nucleaire energie, kernenergie, nucleaire Reacties, kernsplijting, Shots van auto, nucleaire dreiging Tablet, gevaar teken, ,

Estonian :

Tšernobõli, Ukraina, Soviuet Liidu, tuumareaktorite, tuumakatastroofi, kiirguse, varemed, Tšernobõli tuumaelektrijaama, Pripyat, radioaktiivsete, katastroofi riski, kriisi, avarii, risk, tuumaenergia, energia, tuumaenergia, tuuma võimu, aatomi võimu, tuuma reaktsioonid, tuuma lõhustumist, kaadrid auto, tuumaohtu tablett, ohu märk, ,

Finnish :

Tšernobyl, Ukraina, Soviuet unionin, ydinreaktoreita, ydinonnettomuuden, säteily, rauniot, Tšernobylin ydinvoimalan, Pripyatin, radioaktiivinen katastrofin vaaran kriisi, hätä, riski, ydinenergian, energia, ydinvoima, ydinvoima power, ydinvoimaa, ydinvoiman reaktioita, fissio, laukausta auton, ydinaseista Tablet, vaaran merkki,

French :

Tchernobyl, en Ukraine, Soviuet Union, réacteurs nucléaires, en cas de catastrophe nucléaire, radiation, ruines, centrale nucléaire de Tchernobyl, Pripiat, radioactif, catastrophe, hasarder, crise, urgence, risque, énergie nucléaire, énergie, puissance nucléaire, nucléaire, énergie nucléaire, nucléaire réactions, la fission nucléaire, coups de voiture, menace nucléaire Tablet, signal de danger, ,

German :

Tschernobyl, Ukraine, Soviuet Union, Kernreaktoren, nukleare Katastrophe, Strahlung, Ruinen, Kernkraftwerk Tschernobyl, Pripyat, radioaktiv, Katastrophe, Gefahr, Krise, Notfall, Risiko, Kernenergie, Energie, Kernenergie, nukleare Energie, Atomkraft, Kernenergie Reaktionen, Kernspaltung, Aufnahmen von Auto, nukleare Bedrohung Tablet, Warnschild, ,

Greek :

Του Τσερνομπίλ, Ουκρανία, Soviuet Ένωση, πυρηνικοί αντιδραστήρες, πυρηνική καταστροφή, ακτινοβολία, ερείπια, εγκαταστάσεις πυρηνικής ενέργειας του Τσερνομπίλ, Pripyat, ραδιενεργά, καταστροφή, κινδύνου, κρίσης, έκτακτης ανάγκης, κίνδυνος, πυρηνική ενέργεια, ενέργεια, πυρηνική ενέργεια, πυρηνική δύναμη, ατομικής ενέργειας, πυρηνική αντιδράσεις, πυρηνική σχάση, πυροβολισμούς από αυτοκίνητο, πυρηνική απειλή Tablet, σημάδι του κινδύνου, ,

Haitian Creole :

Chernobyl, Ikrèn, Soviuet Union, reyaktè nikleyè, dezas nikleyè, tretman, win, Chernobyl fòs nikleyè Plant, Pripyat, Radyoaktif, yon dezas, risque, kriz, ijans, pran/seye chans, enèji nikleyè, enèji, fòs nikleyè, nikleyè, atomik pouvwa, nikleyè reyaksyon, nikleyè fizyon, kout fe nan machin, nikleyè menas konprime, siy danje, ,

Hebrew :

בצ'רנוביל, אוקראינה, Soviuet יוניון, כורים גרעיניים, אסון גרעיני, קרינה, חורבות, הכוח הגרעינית בצ'רנוביל, Pripyat, רדיואקטיבי, אסון, הזארד, משבר, חירום, סיכון, אנרגיה גרעינית, אנרגיה, כוח גרעיני, גרעיני, כוח גרעיני, גרעיני תגובות, ביקוע גרעיני, יריות מתוך המכונית, האיום הגרעיני Tablet, סימן לסכנה, ,

Hindi :

चेर्नोबिल, यूक्रेन, Soviuet यूनियन, परमाणु रिएक्टरों, परमाणु आपदा, विकिरण, खंडहर, चेर्नोबिल परमाणु ऊर्जा संयंत्र, Pripyat, रेडियोधर्मी, आपदा, खतरा, संकट, आपातकाल, जोखिम, परमाणु ऊर्जा, ऊर्जा, परमाणु, परमाणु शक्ति, परमाणु शक्ति, परमाणु प्रतिक्रियाओं, परमाणु विखंडन, कार से शॉट्स, परमाणु खतरा गोली, खतरे पर हस्ताक्षर, ,

Hungarian :

Csernobil, Ukrajna, Soviuet Unió, nukleáris reaktorok, nukleáris katasztrófa, sugárzás, romok, a csernobili atomerőmű, Pripjaty, radioaktív, katasztrófa, veszély, válság, sürgősségi, kockázat, a nukleáris energia, energia, nukleáris, nukleáris erő, atomenergia, nukleáris reakciók, a maghasadás, felvétel, autó, nukleáris fenyegetés tabletta, veszély jele, ,

Indonesian :

Chernobyl, Ukraina, Uni Soviuet, reaktor nuklir, bencana nuklir, radiasi, reruntuhan, pembangkit listrik tenaga nuklir Chernobyl, Prypiać, radioaktif, bencana, bahaya, krisis, darurat, risiko, energi nuklir, energi, tenaga nuklir, nuklir, atom kekuasaan, nuklir reaksi, fisi nuklir, gambar dari mobil, ancaman nuklir Tablet, tanda bahaya, ,

Italian :

Chernobyl, Ucraina, Unione Soviuet, reattori nucleari, disastro nucleare, radiazioni, rovine, pianta di energia nucleare di Chernobyl, Pripyat, radioattivo, emergenza, di pericolo, crisi, emergenza, rischio, energia nucleare, energia, energia nucleare, nucleare, energia nucleare, nucleare reazioni, la fissione nucleare, scatti da auto, minaccia nucleare Tablet, segno di pericolo, ,

Japanese :

チェルノブイリ、ウクライナ、Soviuet 連合、原子炉、原子力災害、放射線、遺跡、チェルノブイリ原子力発電所、放射性、プリピャチ災害、危機、緊急、リスク、原子力、エネルギー、原子力、原子力発電、原子力発電、原子力発電の危険性, 反応、原子核分裂、車、タブレットの核の脅威、危険の印からのショット,

Korean :

체르노빌, 우크라이나, Soviuet 연합, 원자로, 핵 재해, 방사선, 유적, 체르노빌 원자력 발전소, Pripyat, 방사능, 재해, 위험, 위기, 비상, 위험, 핵 에너지, 에너지, 핵, 핵 전력, 원자력, 핵 반응, 핵 분열, 자동차, 핵 위협 태블릿, 위험 표시에서 촬영,

Latvian :

Černobiļas, Ukraina, Soviuet Savienībā, kodolreaktori, kodolkatastrofa, radiācija, drupas, Černobiļas atomelektrostacija, Pripyat, radioaktīvo, katastrofu, bīstamības, krīze, avārijas, riska, kodolenerģijas, enerģija, kodoldrošības, kodolieroču spēku, atomu jaudas, kodolenerģijas reakcijas, kodola skaldīšanas šāvienu no automašīnas, kodolieroču draudiem Tablet, bīstamības zīmi, ,

Lithuanian :

Černobylio, Ukraina, Soviuet Sąjunga, Branduoliniai reaktoriai, branduolinės katastrofos, radiacijos, griuvėsiai, Černobylio atominės elektrinės, Pripetė, radioaktyvios, nelaimė, pavojus, krizės, ekstremalių situacijų, rizika, branduolinės energijos, energijos, branduolinių, branduolinės energijos, atominės energijos, branduolinės reakcijas, branduolių skilimas, iš automobilių, branduolinės grėsmės tabletė, pavojaus ženklas, ,

Norwegian :

Tsjernobyl, Ukraina, Soviuet Union, kjernereaktorer, kjernefysisk katastrofe, stråling, ruiner, Tsjernobyl kjernekraftverk, Pripyat, radioaktive, katastrofe, fare, krise, krise, risiko, kjernekraft, energi, kjernekraftverk, kjernefysisk makt, atomic strøm, kjernefysiske reaksjoner, kjernefysisk fisjon, skudd fra bil, atomvåpentrusselen tavle, fare tegn, ,

Polish :

Czarnobyla na Ukrainie, Soviuet Unii, reaktory jądrowe, katastrofy, promieniowanie, ruiny, elektrowni jądrowej w Czarnobylu i Prypeci, radioaktywne, katastrofy, zagrożenia, kryzys, awaryjne, ryzyko, energii jądrowej, energii, energii jądrowej, energii atomowej i jądrowej reakcje, rozszczepienia jądrowego, strzały z samochodu, zagrożenia nuklearnego Tablet, znak niebezpieczeństwa, ,

Portuguese :

Chernobyl, Ucrânia, União Soviuet, reatores nucleares, desastres nucleares, radiação, ruínas, Usina Nuclear de Chernobyl, Pripyat, radioativo, desastre, de perigo, crise, emergência, risco, energia nuclear, energia, energia nuclear, nuclear, energia atômica, nuclear reações, fissão nuclear, tiros de carro, ameaça nuclear Tablet, sinal de perigo, ,

Romanian :

Cernobal, Ucraina, Uniunea Soviuet, reactoare nucleare, dezastru nuclear, radiaţii, ruinele centralei nucleare Cernobal, Pripyat, radioactive, dezastru, hazard, criza, urgenţă, risc, energiei nucleare, energia, nucleare, putere, putere atomice, nucleare reacţii, fisiunea nucleară, fotografii de la masina, ameninţării nucleare Tablet, semn de pericol, ,

Russian :

Чернобыль, Украина, Soviuet союз, ядерных реакторов, ядерной катастрофы, излучения, руины, ЧАЭС, Припять, радиоактивные, катастрофы, опасности, кризис, чрезвычайное положение, риск, ядерной энергии, энергии, ядерных, ядерной энергии, атомной энергетики, ядерной реакции, атомного, кадры из автомобиля, ядерная угроза таблетка, знак опасности, ,