¿Son seguras las centrales nucleares?

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Re: ¿Son seguras las centrales nucleares?
« Respuesta #204 en: Jueves 24 Marzo 2011 11:35:26 am »
en japon ya tuvieron serios problemas, que ocultaron, la vasija del reactor 4 la tuvieron que reparar porque alcanzo los 600º hace años (Fukushima Engineer Says He Helped Cover Up Flaw at Dai-Ichi Reactor No. 4)

¿y porque nos limitamos a estadísticas de españa?

¿cuantas centrales hay en el mundo?¿cuantos accidentes muy graves a habido?
las estadísticas no engañan, y los accidentes aunque sean imprevisibles se suceden, a que tenemos que esperar ¿a que suceda un imprevisto que mate a cientos de miles de personas?

si hacemos todo el ciclo nuclear seguro, como tendría que ser, desde la explotación de las minas de uranio hasta la gestión de residuos, pasando por la construcción de las centrales y su seguridad, evidentemente no sale rentable,
si además contamos con la incompetencia de los responsables e intereses de los gestores tenemos bombas de relojería,
solo nos queda la duda de saber cuál será la siguiente

¿realmente vale la pena ese riesgo por tener la luz encendida una hora más?

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Re: ¿Son seguras las centrales nucleares?
« Respuesta #205 en: Jueves 24 Marzo 2011 12:21:22 pm »
accidentes
Citar
1950s

December 12, 1952 — INES Level 5[citation needed] - Chalk River, Ontario, Canada - Reactor core damaged
A reactor shutoff rod failure, combined with several operator errors, led to a major power excursion of more than double the reactor's rated output at AECL's NRX reactor. The operators purged the reactor's heavy water moderator, and the reaction stopped in under 30 seconds. A cover gas system failure led to hydrogen explosions, which severely damaged the reactor core. The fission products from approximately 30 kg of uranium were released through the reactor stack. Irradiated light-water coolant leaked from the damaged coolant circuit into the reactor building; some 4,000 cubic meters were pumped via pipeline to a disposal area to avoid contamination of the Ottawa River. Subsequent monitoring of surrounding water sources revealed no contamination. No immediate fatalities or injuries resulted from the incident; a 1982 followup study of exposed workers showed no long-term health effects. Future U.S. President Jimmy Carter, then a Lieutenant in the US Navy, was among the cleanup crew.[1]
October 10, 1957 - INES Level 5 - Windscale, Cumbria, Great Britain - Core fire
The graphite core of a British nuclear [weapons programme] reactor at Windscale, Cumberland (now Sellafield, Cumbria) caught fire, releasing substantial amounts of radioactive contamination into the surrounding area. The event, known as the Windscale fire, was the worst nuclear accident in Great Britain.
May 24, 1958 — INES Level needed - Chalk River, Ontario, Canada - Fuel damaged
Due to inadequate cooling a damaged uranium fuel rod caught fire and was torn in two as it was being removed from the core at the NRU reactor. The fire was extinguished, but not before radioactive combustion products contaminated the interior of the reactor building and, to a lesser degree, an area surrounding the laboratory site. Over 600 people were employed in the clean-up.[2][3]
October 25, 1958 - INES Level needed - Vinča, Yugoslavia - Criticality excursion, irradiation of personnel
During a subcritical counting experiment a power buildup went undetected at the Vinca Nuclear Institute's zero-power natural uranium heavy water moderated research reactor.[4] Saturation of radiation detection chambers gave the researchers false readings and the level of moderator in the reactor tank was raised triggering a criticality excursion which a researcher detected from the smell of ozone.[5] Six scientists received radiation doses of 2—4 Sv (200—400 rems) [6] (p. 96). An experimental bone marrow transplant treatment was performed on all of them in France and five survived, despite the ultimate rejection of the marrow in all cases. A single woman among them later had a child without apparent complications. This was one of the first nuclear incidents investigated by then newly-formed IAEA.[7]
July 26, 1959 — INES Level needed - Santa Susana Field Laboratory, California, United States - Partial meltdown
A partial core meltdown may have taken place when the Sodium Reactor Experiment (SRE) experienced a power excursion that caused severe overheating of the reactor core, resulting in the melting of one-third of the nuclear fuel and significant releases of radioactive gases. [8]
[edit]1960s

July 24, 1964 - INES Level needed - Charlestown, Rhode Island, United States - Criticality Accident
An error by a worker at a United Nuclear Corporation fuel facility led to an accidental criticality. Robert Peabody, believing he was using a diluted uranium solution, accidentally put concentrated solution into an agitation tank containing sodium carbonate. Peabody was exposed to 10,000rad (100Gy) of radiation and died two days later. Ninety minutes after the criticality, a plant manager and another administrator returned to the building and were exposed to 100rad (1Gy), but suffered no ill effects.[9][10]
October 5, 1966 — INES Level needed - Monroe, Michigan, United States - Partial meltdown
A sodium cooling system malfunction caused a partial meltdown at the Enrico Fermi demonstration nuclear breeder reactor (Enrico Fermi-1 fast breeder reactor). The accident was attributed to a zirconium fragment that obstructed a flow-guide in the sodium cooling system. Two of the 105 fuel assemblies melted during the incident, but no contamination was recorded outside the containment vessel.[11]
Winter 1966-1967 (date unknown) – INES Level needed – location unknown – loss of coolant accident
The Soviet icebreaker Lenin, the USSR’s first nuclear-powered surface ship, suffered a major accident (possibly a meltdown — exactly what happened remains a matter of controversy in the West) in one of its three reactors. To find the leak the crew broke through the concrete and steel radiation shield with sledgehammers, causing irreparable damage. It was rumored that around 30 of the crew were killed. The ship was abandoned for a year to allow radiation levels to drop before the three reactors were removed, to be dumped into the Tsivolko Fjord on the Kara Sea, along with 60% of the fuel elements packed in a separate container. The reactors were replaced with two new ones, and the ship re-entered service in 1970, serving until 1989.
May 1967 — INES Level needed - Dumfries and Galloway, Scotland, United Kingdom - Partial meltdown
Graphite debris partially blocked a fuel channel causing a fuel element to melt and catch fire at the Chapelcross nuclear power station. Contamination was confined to the reactor core. The core was repaired and restarted in 1969, operating until the plant's shutdown in 2004.[12][13]
January 21, 1969 — INES Level needed - Lucens, Canton of Vaud, Switzerland - Explosion
A total loss of coolant led to a power excursion and explosion of an experimental nuclear reactor in a large cave at Lucens. The underground location of this reactor acted like a containment building and prevented any outside contamination. The cavern was heavily contaminated and was sealed. No injuries or fatalities resulted.[14][15]
[edit]1970s

December 7, 1975 – INES Level 3 - Greifswald, Germany (then East Germany) - Partly damaged
Operators disabled three of six cooling pumps' electrical supply circuits to test emergency shutoffs. Instead of the expected automatic shutdown, a fourth pump failed causing excessive heating which damaged ten fuel rods. The accident was attributed to sticky relay contacts and generally poor construction in the Soviet-built reactor.[16]
February 22, 1977 – INES Level 4 - Jaslovské Bohunice, Czechoslovakia - Fuel damaged
Operators neglected to remove moisture-absorbing materials from a fuel rod assembly before loading it into the KS 150 reactor at power plant A-1. The accident resulted in damaged fuel integrity, extensive corrosion damage of fuel cladding and release of radioactivity into the plant area. The affected reactor was decommissioned following this accident.[17]
March 28, 1979 – INES Level 5[citation needed] - Middletown, Dauphin County, Pennsylvania, United States - Partial meltdown
Equipment failures and worker mistakes contributed to a loss of coolant and a partial core meltdown at the Three Mile Island Nuclear Generating Station 15 km (9 miles) southeast of Harrisburg. While the reactor was extensively damaged, on-site radiation exposure was under 100 millirems (less than annual exposure due to natural sources). Area residents received a smaller exposure of 1 millirem (10 µSv), or about 1/3 the dose from eating a banana per day for one year. There were no fatalities. Follow-up radiological studies predict between zero and one long-term cancer fatality.[18][19][20]
See also: Three Mile Island accident
[edit]1980s

March 13, 1980 - INES Level 4 - Orléans, France - Nuclear materials leak
A brief power excursion in Reactor A2 led to a rupture of fuel bundles and a minor release (8 x 1010 Bq) of nuclear materials at the Saint-Laurent Nuclear Power Plant. The reactor was repaired and continued operation until its decommissioning in 1992.[21]
March, 1981 — INES Level 2 - Tsuruga, Japan - Overexposure of workers
More than 100 workers were exposed to doses of up to 155 millirem per day radiation during repairs of a nuclear power plant, violating the company's limit of 100 millirems (1 mSv) per day.[22]
September 23, 1983 — INES Level 4 - Buenos Aires, Argentina - Accidental criticality
An operator error during a fuel plate reconfiguration in an experimental test reactor led to an excursion of 3×1017 fissions at the RA-2 facility. The operator absorbed 2000 rad (20 Gy) of gamma and 1700 rad (17 Gy) of neutron radiation which killed him two days later. Another 17 people outside of the reactor room absorbed doses ranging from 35 rad (0.35 Gy) to less than 1 rad (0.01 Gy).[23] pg103[24]
April 26, 1986 — INES Level 7 - Prypiat, Ukraine (then USSR) - Power excursion, explosion, complete meltdown
An inadequate reactor safety system[25] led to an uncontrolled power excursion, causing a severe steam explosion, meltdown and release of radioactive material at the Chernobyl nuclear power plant located approximately 100 kilometers north-northwest of Kiev. Approximately fifty fatalities (mostly cleanup personnel) resulted from the accident and the immediate aftermath. An additional nine fatal cases of thyroid cancer in children in the Chernobyl area have been attributed to the accident. The explosion and combustion of the graphite reactor core spread radioactive material over much of Europe. 100,000 people were evacuated from the areas immediately surrounding Chernobyl in addition to 300,000 from the areas of heavy fallout in Ukraine, Belarus and Russia. An "Exclusion Zone" was created surrounding the site encompassing approximately 1,000 mi² (3,000 km²) and deemed off-limits for human habitation for an indefinite period. Several studies by governments, UN agencies and environmental groups have estimated the consequences and eventual number of casualties. Their findings are subject to controversy.
See also: Chernobyl disaster
May 4, 1986 – INES Level needed - Hamm-Uentrop, Germany (then West Germany) - Fuel damaged
A spherical fuel pebble became lodged in the pipe used to deliver fuel elements to the reactor at an experimental 300-megawatt THTR-300 HTGR. Attempts by an operator to dislodge the fuel pebble damaged its cladding, releasing radiation detectable up to two kilometers from the reactor.[26]
October 19, 1989 – INES Level 3 - Vandellos Nuclear Power Plant, Spain -fire in one of its two turbogenerators
After the fire in the turbogenerators the Spanish comission determined a large list of issues in the plant that was closed by the owners due to economical unviability.
[edit]1990s

April 6, 1993 — INES Level 4 - Tomsk, Russia - Explosion
A pressure buildup led to an explosive mechanical failure in a 34 cubic meter stainless steel reaction vessel buried in a concrete bunker under building 201 of the radiochemical works at the Tomsk-7 Siberian Chemical Enterprise plutonium reprocessing facility. The vessel contained a mixture of concentrated nitric acid, uranium (8757 kg), plutonium (449 g) along with a mixture of radioactive and organic waste from a prior extraction cycle. The explosion dislodged the concrete lid of the bunker and blew a large hole in the roof of the building, releasing approximately 6 GBq of Pu 239 and 30 TBq of various other radionuclides into the environment. The contamination plume extended 28 km NE of building 201, 20 km beyond the facility property. The small village of Georgievka (pop. 200) was at the end of the fallout plume, but no fatalities, illnesses or injuries were reported. The accident exposed 160 on-site workers and almost two thousand cleanup workers to total doses of up to 50 mSv (the threshold limit for radiation workers is 100 mSv per 5 years).[27][28][29]
June, 1999 — INES Level 2[30] - Ishikawa Prefecture, Japan - Control rod malfunction
Operators attempting to insert one control rod during an inspection neglected procedure and instead withdrew three causing a 15 minute uncontrolled sustained reaction at the number 1 reactor of Shika Nuclear Power Plant. The Hokuriku Electric Company who owned the reactor did not report this incident and falsified records, covering it up until March, 2007.[31]
September 30, 1999 — INES Level 4 - Ibaraki Prefecture, Japan - Accidental criticality
Inadequately trained part-time workers prepared a uranyl nitrate solution containing about 16.6 kg of uranium, which exceeded the critical mass, into a precipitation tank at a uranium reprocessing facility in Tokai-mura northeast of Tokyo, Japan. The tank was not designed to dissolve this type of solution and was not configured to prevent eventual criticality. Three workers were exposed to (neutron) radiation doses in excess of allowable limits. Two of these workers died. 116 other workers received lesser doses of 1 mSv or greater though not in excess of the allowable limit.[32][33][34][35]
See also: Tokaimura nuclear accident
[edit]2000s

April 10, 2003 — INES Level 3 - Paks, Hungary - Fuel damaged
Partially spent fuel rods undergoing cleaning in a tank of heavy water ruptured and spilled fuel pellets at Paks Nuclear Power Plant. It is suspected that inadequate cooling of the rods during the cleaning process combined with a sudden influx of cold water thermally shocked fuel rods causing them to split. Boric acid was added to the tank to prevent the loose fuel pellets from achieving criticality. Ammonia and hydrazine were also added to absorb iodine-131.[36]
April 19, 2005 — INES Level 3 - Sellafield, England, United Kingdom - Nuclear material leak
20 metric tons of uranium and 160 kilograms of plutonium dissolved in 83,000 litres of nitric acid leaked over several months from a cracked pipe into a stainless steel sump chamber at the Thorp nuclear fuel reprocessing plant. The partially processed spent fuel was drained into holding tanks outside the plant.[37][38]
November 2005 — INES Level needed - Braidwood, Illinois, United States - Nuclear material leak
Tritium contamination of groundwater was discovered at Exelon's Braidwood station. Groundwater off site remains within safe drinking standards though the NRC is requiring the plant to correct any problems related to the release.[39]
March 6, 2006 — INES Level 2[40] - Erwin, Tennessee, United States - Nuclear material leak
Thirty-five litres of a highly enriched uranium solution leaked during transfer into a lab at Nuclear Fuel Services Erwin Plant. The incident caused a seven-month shutdown. A required public hearing on the licensing of the plant was not held due to the absence of public notification.[41][42][43][44]
[edit]2010s

See also: Timeline of the Fukushima nuclear accidents
March 11-20, 2011 - INES Level 5[45] , previously 4[46] or higher (6[47][48][49] as of March 15 according to Andre-Claude Lacoste, president of France's nuclear safety authority. It is not an official rating[50])
Fukushima I Nuclear Power Plant, Japan - Overheating, explosions, fire, radioactivity emergency
Main article: Fukushima I nuclear accidents
After the 2011 Tōhoku earthquake and tsunami of March 11, the emergency power supply of the Fukushima-Daiichi nuclear power plant failed. This was followed by deliberate releases of radioactive gas from reactors 1 and 2 to relieve pressure. On March 12, triggered by falling water levels, a hydrogen explosion occurred at reactor 1, resulting in the collapse of the concrete outer structure.[51][52][53][54][55] Although the reactor containment itself was confirmed to be intact,[56][57][58] the hourly radiation from the plant reached 1,015 microsievert (0.1015 rem) - an amount equivalent to that allowable for ordinary people in one year."[59][60] Residents of the Fukushima area were advised to stay inside, close doors and windows, turn off air conditioning, and to cover their mouths with masks, towels or handkerchiefs as well as not to drink tap water.[61] By the evening of March 12, the exclusion zone had been extended to 20 kilometres (12 mi) around the plant[62] and 70,000 to 80,000 people had been evacuated from homes in northern Japan.[63] A second, nearly identical hydrogen explosion occured in the reactor building for Unit 3 on March 14, with similar effects.[64] A third explosion in the “pressure suppression room” of Unit 2[65] initially was said not to have breached the reactor’s inner steel containment vessel,[66] but later reports indicated that the explosion damaged the steel containment structure of Unit 2 and much larger releases of radiation were expected than previously.[65]
Disposed rods of reactor Unit 4 were stored outside the reactor in a separate pool which ran dry, yielding fire and risk of serious contamination.[67]
Staff was brought down from 800 to 50.[67] Events are still developing.
March 11-13, 2011 - INES Level 3[68], Fukushima II Nuclear Power Plant, Japan - Overheating, possible radioactivity emergency
After the 2011 Tōhoku earthquake and tsunami of March 11, the cooling systems for three reactors (numbers 1, 2 and 4) of the Fukushima-Daini nuclear power plant were compromised due to damage from the tsunami.[69] Nuclear Engineering International reported that all four units were successfully automatically shut down, but emergency diesel generators at the site were out of order.[70] People were evacuated around 10 kilometres (6.2 mi) from the plant. An evacuation order was issued, because of possible radioactive contamination.[71][72] Events are still developing.
http://en.wikipedia.org/wiki/List_of_civilian_nuclear_accidents

por meses,
Citar
January

1-1992: Four tons of heavy water spilt at Rajasthan nuclear power plant (India)
2-1993: Leak at Kozloduy nuclear power plant, release of radioactive steam (Bulgaria)
3-1961: Explosion in reactor Idaho Falls (USA); three people killed
4-1965: 6.5 kg plutonium sludge released from Savannah River reprocessing plant (USA)
5-1976: Two workers killed by radioactive carbon dioxide at Bohunice nuclear power plant (Slovakia)
6-1981: Accident at La Hague reprocessing plant (France)
7-1974: Explosion at Leningrad nuclear power plant (Russia)
8-1975: Release of radioactivity from Mihama nuclear power plant (Japan)
9-1993: Radioactive release from leaking fuel rods at Perry nuclear power plant (USA)
10-1987: Nuclear transport accident in the UK
11-1985: In Heilbronn (Germany), a Pershing-II nuclear missile catches fire, three people killed
12-1960: Technicians trying to restart a reactor at Savannah River reprocessing plant almost send it out of control (USA)
13-1964: A B-52 plane crashes with nuclear bombs on board in Maryland (USA)
14-1969: USS Enterprise, nuclear aircraft-carrier, suffers fires and explosions, killing 28 crew members
15-
16-1990: Loss of offsite power with multiple equipment failures at Dresden nuclear power plant (USA)
17-1966: A B-52 plane crashes in Spain causing plutonium contamination
18-1989: Eight workers are contaminated at Savannah River reprocessing plant (USA)
19-1992: Radioactive leak, reactor shut-down at Kola nuclear power plant (Russia)
20-1993: Technical failure at Paluel causes subcooling accident (France)
21-1969: Technical failure at Swiss experimental nuclear reactor causes release of radioactive water
22-1992: Technical failure in shut-down system at Balakovo nuclear power plant (Russia)
23- 1978: Radioactive helium released from Colorado reactor (USA)
24-1978: Soviet nuclear-powered satellite Cosmos-954 crashes in Canada
25-1982: Steam generator ruptures at R.E. Ginna nuclear power plant (USA)
26-1988: Dangerous temperature rise in a nuclear reactor on board a British submarine
27-1992: Leak causes a shut-down at Darlington nuclear power plant (Canada)
28-1990: Pump failure during a shut-down at Gravelines nuclear power plant (France)
29-1961: A B-52 plane carrying nuclear bombs crashes, the bombs do not explode but three of the eight crew members are killed (USA)
30-
31 -1996: Leakage of radiation due to human error and technical failure at Dimitrovgrad nuclear research centre (Russia)
February

1-1982: Release of 100 cubic metres of radioactive water from Salem nuclear power plant (USA)
2-1993: Breakdown of cooling system for two hours at Kola nuclear power plant (Russia)
3-1992: Failure of cooling pumps at Kozloduy nuclear power plant (Bulgaria)
4-
5-1986: "Amber alert" (indicating an emergency in one building and a threat to the rest of the plant)" at Sellafield reprocessing plant, UK
6-1974: Explosion and radiation leak at Leningrad nuclear power plant, three people killed (Russia)
7-
8-1991: Release of radioactivity from Fukui nuclear power plant (Japan)
9-1991: Rupture of steam generator pipe causes release of radioactivity at Mihama nuclear power plant (Japan)
10-1992: Technical failure in pump system at Zaporozhe nuclear power plant (Ukraine)
11-1986: Release of 13 tonnes of radioactive carbon dioxide from Transfynydd nuclear power plant (UK)
12-1968: A B-52 plane with nuclear bombs on board crashes near Toronto (Canada)
13-1960: First French nuclear test
14-
15-1993: Spillage of 18,000 litres of heavy water at Darlington nuclear power plant (Canada)
16-1973: Container filled with Cobalt-60 lost in the North Sea
17-1984: Accident at Kozloduy nuclear power plant (Bulgaria)
18-1988: Report of core melt in the nuclear reactor of the Soviet Ice-Breaker "Rossiya"
19-1986: Three workers suffer contamination at the Sellafield reprocessing plant (UK)
20-1990: Eight employees receive radiation exposure at Point Lepreau (Canada)
21-1976: Accident at Bohunice nuclear power plant (Slovakia)
22-1993: High pressure steam accident kills one worker and injures two others at Fukushima nuclear power plant (Japan)
23-1981: Accidental explosion of a Pershing-II missile in Germany
24-1972: Accident on board Soviet nuclear-powered submarine causes vessel to lose all power
25-1983: Failure of automatic shut-down at Salem nuclear power plant (USA)
26-1988: Increased levels of radioactivity at Bohunice nuclear power plant (Slovakia)
27-1983: Nuclear powered satellite falls into the Indian Ocean
28-1992: Software failure in the control computer at Embalse nuclear power plant (Argentina)
March

1-1954: Fall-out of US nuclear weapons test "Bravo" contaminates the inhabitants of the Pacific island of Rongelap.
2-1994: Breakdown of cooling system at Kola nuclear power plant (Russia)
3-1992: Technical failure at Novovoronezh nuclear power plant (Russia)
4-1977: Kozloduy nuclear power plant affected by an earthquake (Bulgaria)
5-
6-1985: Emergency cooling system out of order at the Grohnde nuclear power plant (Germany)
7-
8-1972: Radioactive water has to be pumped out of the Indian Point nuclear power plant (USA)
9-1992: Fire at Kola nuclear power plant (Russia)
10-1956: A B-47 plane disappears with nuclear weapons on board in the Atlantic Ocean
11-1958: A B-47 plane loses nuclear bomb in South Carolina (USA)
12-1981: Tornado washes nuclear waste from Moruroa into the lagoon (Pacific)
13-1986: US nuclear submarine runs aground and suffers damage
14-1961: A B-52 plane crashes with nuclear bombs on board in California (USA)
15-1989: Technical failure of fuel roads at Pickering nuclear power plant (Canada)
16-
17-1984: Emergency cooling system at San Onofere nuclear power plant fails (USA)
18-1987: Fire and release of radioactivity at Australian nuclear research facility
19-
20-1977: Temperature increase at Rancho Seco nuclear power plant (USA)
21-1984: Soviet nuclear submarine collides with US aircraft carrier "Kitty Hawk"
22-1975: Fire in reactor at Browns Ferry nuclear power plant (USA)
23-
24-1992: Incident with radiation leakage, shut-down of reactor at Leningrad nuclear power plant (Russia)
25-1992: Technical failure at Leningrad nuclear power plant (Russia)
26-1991: Refuelling accident at Wuergassen nuclear power plant (Germany)
27-
28-1979: Partial core meltdown at Three Mile Island nuclear power plant (USA)
29-1992: Failure of shut-down system at Ignalina nuclear power plant (Lithuania)
30-
31-1992: Automatic shut-down due to failure of pump system at Kalinin nuclear power plant (Russia)
April

1-1989: Control rod failure at Gravelines nuclear power plant (France)
2-1979: Two workers suffer radioactive contamination at Tokaimura nuclear complex (Japan)
3-1960: Melting of fuel elements cause a release of radioactivity at the Test Reactor at Waltz Mills (USA)
4-
5-
6-1993: Explosion at the Tomsk-7 nuclear complex (Russia)
7-1992: Failure of automatic shut-down system at Novovoronezh nuclear power plant (Russia)
8-1989: Soviet nuclear submarine "Komsomolets" sinks off Norway
9-1981: US-nuclear submarine "George Washington" crashes against a freighter ship
10-1963: US-nuclear submarine sinks with 123 crew members in the Atlantic
11-1950: A B-29 plane crashes in New Mexico, thirteen people killed.
12-1970: Soviet nuclear submarine sinks in the Atlantic
13-1979: Fire in the generator of the Baersbeck nuclear power plant (Sweden)
14-1970: Soviet nuclear submarine sinks with 52 crew members in Indian ocean
15-1983: Incident at Turkey Point nuclear power plant (USA)
16-1992: Technical failure of reactor shut-down system at Kola nuclear power plant (Russia)
17-1970: Incident involving a vehicle at a French nuclear test site in the South Pacific causes a plutonium spillage into the ocean.
18-1992: Technical failure during refuelling at Kola nuclear power plant (Russia)
19-1984: Technical failure at Sequoyah nuclear power plant causes spillage of radioactive coolant water. (USA)
20-1973: Thousands of cubic meters of radioactive waste flow out of Hanford nuclear weapons complex (USA)
21-1964: US-satellite disperses 1.2.kg plutonium into the atmosphere.
22-1983: Reactor shut-down due to failure of fuel rods at Kursk nuclear power plant (Russia)
23-1991: Lost of offsite power cause technical failure at "Vermont Yankee" nuclear submarine (USA)
24-
25-1990: Flooding of building due to increase of coolant level at Bohunice nuclear power plant (Slovakia)
26-1986: Explosion of reactor 4 at Chernobyl nuclear power plant; the worst civilian nuclear accident to date.
27-
28-1988: Release of 5000 Curies of tritium gas from the Bruyere le Chatel military nuclear complex (France)
29-1986: US-nuclear submarine "Atlanta" hits the ground off Gibralta
30-1992: Breakdown of cooling system at Novovoronezh nuclear power plant (Russia)
May

1-1992: Technical failure at Ignalina nuclear power plant (Lithuania)
2-1979: Technical fault at the Oyster Creek nuclear power plant triggers emergency shut-down (USA)
3-1974: Leakage at Hanford nuclear weapons complex (USA)
4-1986: Release of radiation from Hamm-Uentrop nuclear power plant (Germany)
5-1987: Pershing nuclear missile ends up in a ditch after a transport accident at Heilbronn (Germany)
6-1989: Fire of pump equipment at Bohunice nuclear power plant (Slovakia)
7-1992: Failure of emergency system at Smolensk nuclear power plant (Russia)
8-1964: First Chinese nuclear test
9-1992: Technical failure of cooling system at Hatch nuclear power plant (USA)
10-1965: Release of eight cubic metres of cooling water from Savannah River reprocessing plant (USA)
11-1969: Fire at Rocky Flats nuclear weapons plant causes plutonium to spontaneously ignite. (USA)
12-1984: Uncontrolled power surge at Bohunice nuclear power plant (Slovakia)
13-1992: Tube leak causes a radioactive release of 12 Curies of radioactivity from Tarapur nuclear power station (India)
14-1986: The power lines to the Palo Verde nuclear power plant are sabotaged (USA)
15-
16-1992: Reactor shut-down at Kola nuclear power plant (Russia)
17-1984: Fire on board the US-nuclear submarine "Guitarro"
18-1968: Accident during launch of US satellite, radioactive materials fall into ocean near Califiornia coast
19-
20-1974: First Indian nuclear test
21-1968: US-nuclear submarine "Scorpion" sinks off the Acores, 99 people die
22-1957: Human error causes a B-36 plane to release a nuclear bomb in New Mexico
23-1958: Accident and release of radioactivity at the Chalk River experimental reactor (Canada)
24-1968: Incident on board of Soviet nuclear submarine "K- 27", 5 crew members killed by radiation release
25-
26-1990: During refuelling, five cubic meters of radioactive water spilled at the Fessenheim nuclear power plant (France)
27-1993: Reactor shut-down due to breakdown of cooling system at Kola nuclear power plant (Russia)
28-1970: Collision of the US-nuclear submarine "Daniel Boone"
29-
30-
31-
June

1-1991: Failure of core cooling system at Belleville nuclear power plant (France)
2-1992: Total failure of centralised control system at the Smolensk nuclear power plant (Russia)
3-1980: Computer fault causes full-scale alert for US Military Strategic Command
4-1989: Fire in the cables of the cooling pumps at the Bohunice nuclear power plant (Slovakia)
5-1989:
6-1994: Fire at Beloyarsk nuclear power plant (Russia)
7-1960: Fire in a BOMARC-rocket in New Jersey causes plutonium release into the atmosphere (USA)
8-1992: Failure of cooling system at Kola nuclear power plant (Russia)
9-1985: Malfunction in the cooling system at Davis Blesse nuclear power plant (USA)
10-1985: Collision of a British nuclear submarine off the coast of Florida (USA)
11-1989: Spent fuel element dropped in the storage pool and damaged at Kruemmel nuclear power plant (Germany)
12-
13-
14-
15-1992: Technical failure at Sizewell nuclear power plant (UK)
16-1988: Technical failure at Zorita nuclear power plant (Spain)
17-1967: First Chinese hydrogen nuclear bomb test
18-1978: Release of two tons of radioactive steam from Brunsbuettel nuclear power plant (Germany)
19-1992: Leak in pipe conducting sea water to cooling system at Leningrad nuclear power plant (Russia)
20-1985 Collision of two trucks carrying nuclear bombs in Scotland (UK)
21-
22-
23-1986: Twelve people receive `slight' plutonium contamination while inspecting a store room at Tokaimura nuclear complex (Japan)
24-1992: Technical failure of control system at Leningrad nuclear power plant (Russia)
25-
26-1989: Fire and reactor damage in a Soviet submarine
27-1985: Explosion and steam leakage killed 14 workers at Balakovo nuclear power plant (Russia)
28-
29-1991: Power limited due to error between actual and indicated power at Pickering nuclear power plant(Canada).
30-1983: Total loss of coolant at Embalse nuclear power plant (Argentina)
July

1-1983: Technical failure causes release of Iodine-131 from Phillipsburg nuclear power plant (Germany)
2-1966: French nuclear testing in the South Pacific begins 3-1981: Fire at North Anna nuclear power plant (USA)
4-1961: Incident on board of Soviet nuclear submarine "K- 19", radiation release kills 9 crew members
5-
6-1959: US plane carrying nuclear weapons crashes and catches on fire
7-
8-
9-1991: Flaw in cooling system at Wurgassen nuclear power plant (Russia)
10-1991: Leakage of radiation at Bilibino nuclear power plant (Russia)
11-
12-1993: Failure of control system at Susquehanna nuclear power plant (USA)
13-
14-1992: Reactor shut-down due to failure of cooling system at Novovoronezh nuclear power plant (Russia)
15-
16-1945: First explosion of a nuclear bomb ("Trinity") in New Mexico (USA)
17-1991: Reactor shut-down due to break of control system at Sendai nuclear power plant (Japan)
18-1991: Steam leakage causes reactor shut-down at Paks nuclear power plant (Hungary)
19-
20-1992: Leakage of radiation due to breakdown of cooling system at Ignalina nuclear power plant (Lithuania)
21-
22-1992: Two workers contaminated at Dampierre nuclear power plant (France)
23-
24-1989: Refuelling accident at Isar nuclear power plant (Germany)
25-1946: US nuclear test "Baker" causes unexpected plutonium contamination on target vessels
26-1992: Temperature rise in storage pool at Gravelines nuclear power plant (France)
27-1956: US plane crashes into nuclear ammunition storage in the UK
28-1957: US plane loses two nuclear bombs in the Atlantic
29-
30-1986: Human error causes the nuclear warhead to be knocked off a Pershing rocket (Germany)
31-1993: Refuelling machine malfunctions at the Wylfa nuclear power plant (UK)
August

1-1983: An engineer receives a fatal radiation dose at a research reactor in Argentina
2-1987: Elevated radiation level after Soviet nuclear test
3-1983: Argentinean engineer dies from radiation dose received two days earlier
4-
5-1950: B-29 plane with nuclear weapons on board crashes; 19 people killed (USA)
6-1945: Nuclear bomb dropped on the Japanese city of Hiroshima
7-
8-
9-1945: Nuclear bomb dropped on the Japanese city of Nagasaki
10-1985: Explosion on board a Soviet nuclear submarine
11-1988: Damage detected at Atucha nuclear power plant (Argentina)
12-
13-
14-1989: Instrumentation and control failure at Grand Gulf nuclear power plant (USA)
15-1992:
16-1991: Eight control rods show delays in emergency shut- down insertion time at Millstone Point nuclear power plant (USA)
17-1991: Automatic shut-down due to technical problems at Sendai nuclear power plant (Japan)
18-1953: First explosion of Soviet hydrogen bomb
19-1986: Flooding at the Cattenom nuclear power plant (France)
20-1974 Incident at Beznau nuclear power plant (Switzerland)
21-1980: Accident on board Soviet nuclear submarine, believed to kill at least nine crew members
22-1992: Failure of shut-down system at Novovoronezh nuclear power plant (Russia)
23-
24-
25-1984: French freighter sinks in the English Channel with 375 tonnes of uraniumhexafluoride on board
26-1989: Technical failure at Ignalina nuclear power plant (Lithuania)
27-1990: Cable fire causes loss of control of the position of control rods at Chernobyl nuclear power plant (Ukraine)
28-1992: Fire in electro-generator at St.Alban nuclear power plant (France)
29-1949: First explosion of Soviet atomic bomb
30-1985: Fire in a barrel of radioactive waste at Karlsruhe nuclear complex (Germany)
31-1985: Fire at Fukushima nuclear power plant during routine shut-down (Japan)
September

1-1993: Fire at Balakovo nuclear power plant (Russia)
2-
3-1974: Release of radioactive water at Los Alamos nuclear weapons Laboratory (USA)
4-1988: Fire at Perry nuclear power plant (USA)
5-1988: Fire at Ignalina nuclear power plant (Lithuania)
6-1991: Incident and steam leak during refueling at Barsebeck nuclear power plant (Sweden)
7-
8-
9-1989: Control rod failure at Olkiluoto nuclear power plant (Finland)
10-
11-1957: 15 kgs of plutonium catch fire at Rocky Flats nuclear weapons complex (USA)
12-1992: Leakage of radioactive water at Kola nuclear power plant (Russia)
13-1987: 249 people are contaminated in Brazil, due to handling discarded nuclear medical equipment, four people subsequently die
14-1991: Leakage at Kozloduy nuclear power plant (Bulgaria)
15-1986: Fire on board a US plane carrying nuclear weapons
16-1990: Superphenix Fast Breeder Reactor is closed down due to technical failures (France)
17-1988: Nuclear weapons convoy road accident kills one person (UK)
18-1988: Technical failure at Stade nuclear power plant (Germany)
19-1984: Collision of a Soviet nuclear submarine
20-1977: US-nuclear submarine "Ray" hits the sea-bed, three crew members are injured
21-1989: Manual shut-down of WNP nuclear power plant (USA)
22-1980: Pump failure causes accidental release of radioactive water at La Hague reprocessing plant (France)
23-1969: Radioactive contamination of atmosphere during the unsuccessful launch of a Soviet spaceship.
24-1973: 35 workers at the Sellafield reprocessing plant are contaminated following a technical failure (UK)
25-1955: First Soviet underwater nuclear explosion near Novaya Zemlya (Arctic Ocean)
26-
27-1974: Soviet nuclear-capable destroyer sinks in the Black Sea
28-1990: Cables for reactor control and protection system supply overheat at Bohunice nuclear power plant (Slovakia)
29-1957: Thousands of square miles contaminated by accident at the Chelyabinsk nuclear complex (Russia)
30-1990: Failure of reactor core cooling system at Palisades nuclear power plant (USA)
October

1-1983: Technical failure and human error cause accident at Blayas nuclear power plant(France)
2-1968: Leakage at La Hague reprocessing plant (France) 3-1952: First UK nuclear test
4-1981: Release of 300-times the normal discharge level of Iodine-131 at Sellafield reprocessing plant (UK)
5-1966: Partial core meltdown at the Fermi fast breeder reactor (USA)
6-1986: Soviet nuclear submarine sinks off the coast of Bermuda
7-1984: Emergency shut-down of Paks nuclear power plant (Hungary)
8-1985: Accidental radioactive release into the sea from Hinkley Point nuclear power station (UK)
9-1991: Technical failure at Yugno-Ukrainskaya nuclear power plant (Ukraine)
10-1957: Three tonnes of uranium catch fire at the Windscale reprocessing plant (now Sellafield UK)
11-1957: US nuclear bomber crashes in Florida and catches fire
12-
13-1977: Sea water runs into the cooling circuit of Hunterston nuclear power plant (UK)
14-1953: Fall-out from British nuclear test "Totem" contaminates Aborigines in the Australian desert
15-1988: French officials carry out an experiment to test the effects of releasing 7000 Curies of radioactivity
16-1964: First Chinese nuclear test
17-1969: Fuel elements melt at St Laurent des Eaux nuclear power plant (France)
18-1991: Technical failure at Zaporozhe nuclear power plant (Ukraine)
19-1991: Offsite power failure at Smolensk nuclear power plant (Russia)
20-
21-1991: Fire on board "Sceptre" nuclear submarine in Scotland
22-1993: Instrumentation and Control failure at Saint Alban nuclear power plant (France)
23-1989: Failure of core cooling system at Dresdan nuclear power plant (USA)
24-
25-1991: Failure of shut-down system during refuelling at Novovoronezh nuclear power plant (Russia)
26-1991: Incident during refueling at Vogtle nuclear power plant (USA)
27-1991: Technical failure of shut-down system at Zaporozhe nuclear power plant (Ukraine)
28-
29-1991: Technical failure causes automatic shut-down at Kalinin nuclear power plant (Russia)
30-1991:
31-1986: US-nuclear submarine "Augusta" involved in collision
November

1-1992: Cracks in cooling system equipment at Brunsbuttel nuclear power plant (Germany)
2-1982: Nuclear missile transporter crashes killing one person and injuring two others (Germany)
3-1990: Failure of core cooling equipment at Doel nuclear power plant (Belgium)
4-1970: Explosion on board a nuclear-capable US-destroyer kills two sailors
5-1967: UK nuclear-powered ballistic missile submarine `HMS Repulse' runs aground 30 minutes after its launch
6-
7-1967: Release of radioactivity at Grenoble nuclear power plant (France)
8-
9-1955: Core meltdown at EBR fast breeder reactor (USA)
10-
11-1988: Accident during refueling on board of Soviet nuclear powered ice-breaker "Lenin"
12-1993: London Convention bans the dumping of nuclear waste into the sea
13-1974: Karen Silkwood, a worker at a US nuclear plant, dies mysteriously on her way to hand important documents to a Trade Union Official and a journalist
14-1989: Breakdown of fuel rod control system at Oconee nuclear power plant (USA)
15-1989: Fire on board US-nuclear submarine "Finback"
16-1983: Sellafield reprocessing plant discharges highly radioactive wastes directly into the sea (UK)
17-
18-1991: Reactor shut-down due to technical failure at Balakovo nuclear power plant (Russia)
19-1980: US nuclear-missile almost launched during a drill exercise.
20-1989: Fire in turbine equipment at Kozloduy nuclear power plant (Bulgaria)
21-
22-
23-1991: Leak of 190,000 litres of water from cooling system, reactor shut-down at Oconee nuclear power plant (USA)
24-1989: Technical failure nearly causes core meltdown at Greifswald nuclear power plant (Germany)
25-1991: Failure of cooling system causes automatic reactor shut-down at Kursk nuclear power plant (Russia)
26-1958: B-47 plane catches fire, destroying one nuclear weapon (USA)
27-1991: Disfunction of automatic shut-down system at Bilibino nuclear power plant (Russia)
28-1991: Failure of control system causes reactor shut- down at Kursk nuclear power plant (Russia)
29-1982: US nuclear submarine collides with US-destroyer
30-1975: 1.5 million Curies released from Leningrad nuclear power plant (Russia)
December

1-1991: Technical failure at Beloyarsk nuclear power plant (Russia)
2-1949: US experiment "Green Run" contaminates communities up to 70 miles away from the Hanford nuclear weapons complex (USA)
3-1988: Explosion at the Burghfield Atomic Weapons Establishment (UK)
4-1990: 2 workers irradiated during refuelling at Blayais nuclear power plant (France)
5-1965: Plane crashes with nuclear bombs on board off the coast of Japan
6-1991: Failure of control system during refuelling causes reactor shut-down at Smolensk nuclear power plant (Russia)
7-1991: Failure of cooling system at Kola nuclear power plant (Russia)
8-1995: Fire due to leakage of sodium coolant from Monju fast breeder reactor, Japanese nuclear industry attempts to cover up full extent of accident, reactor shut-down
9-1986: Explosion at Surry nuclear power plant, four people killed (USA).
10-1991: Failure of turbo-generator causes reactor shut- down at Balakovo nuclear power plant (Russia)
11-1991: Human error causes failure of automatic reactor shut-down equipment at Kola nuclear power plant (Russia)
12-1952: World's first major nuclear reactor disaster, Chalk River experimental reactor (Canada)
13-1988: Four of the eight emergency installations discovered out of order at Brokdorf nuclear power plant (Germany)
14-1991: Technical failure causes automatic shut-down at Balakovo nuclear power plant (Russia)
15-1991: Technical failure at Kalinin nuclear power plant (Russia)
16-1991: Technical failure at Kola nuclear power plant (Russia)
17-1987: Severe incident at Biblis nuclear power plant (Germany)
18-1984: Fire at Kalinin nuclear power plant (Russia)
19-1980: Plutonium transport accident in the USA
20-1990: Control element discovered damaged at Novovoronezh nuclear power plant (Russia)
21-1991: Radiation leakage at Kolskaya nuclear power plant (Russia)
22-1987: Accidental release of 50 tonnes of water from Atucha nuclear power plant (Argentina)
23-1988: Two control rods jammed at Blayais nuclear power plant (France)
24-1991: Reactor shut-down due to technical failure at Kalinin nuclear power plant (Russia)
25-1992: Radioactive water leakage at Beloyarsk nuclear power plant (Russia)
26-
27-1991: Automatic shut-down Balakovo nuclear power plant (Russia)
28-1990: Incident and radiation leakage at Leningrad nuclear power plant (Russia)
29-
30-1988: Reactor shut-down due to failure of control equipment at Pilgrim nuclear power plant (USA)
31-1978: Fire and loss of reactor control, 8 workers irradiated at Beloyarsk nuclear power plant (Russia)
http://archive.greenpeace.org/comms/nukes/chernob/rep02.html

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Re: ¿Son seguras las centrales nucleares?
« Respuesta #206 en: Jueves 24 Marzo 2011 14:28:20 pm »
¿2 en 40 años? ¿De donde sacas eso?

39 incidentes en un 2005

40 en 2004.


99 notificaciones de fallos desde 2008
http://www.csn.es/index.php?option=com_content&view=category&layout=blog&id=48&Itemid=121&lang=es

Desde poros en en las tuberías del refrigerador a incumplimientos reiterados de las rondas antiincendios, fallos de válvulas por heladas, etc.

Vamos a ver buho, que tu eres inteligente... hablo de incidentes destacables... sabes perfectamente que los incidentes en las nucleares se catalogan en funcion de una escala de 0 a 7, y como bien se explica, por ejemplo, en el primer link, en 2004 y 2005 hubo 39 sucesos notificables cada año, de los cuales en 2004 4 fueron de nivel 1 y en 2005 2 fueron de nivel 1... el resto, o sea, 72, fueron de nivel 0... y en España, desde 1970, todo lo que ha ocurrido ha sido de nivel 0 o 1, excepto los dos que mencione: uno de nivel 2 (Vandellos en 2004) y uno de nivel 3 (Vandellos en 1989)...

Lo dicho: el 99% de lo ocurrido en las centrales españolas en 40 años y decenas de miles de horas de trabajo han sido de nivel 0... y del 1% restante, el 99% ha sido de nivel 1... si esto no es seguridad, que venga dios y lo vea... otra cosa es el tema del problema de los residuos y el potencial desastre que podria causar un accidente de nivel 5, 6 o 7...
La lista de _00_ demuestra por un lado que aunque en España no hayamos tenido "problemas graves", en paises mejor preparados que el nuestro si.

Por otro lado Vigorro, tu que tambien eres muy inteligente, dime que no crees que la industria nuclear tape todo lo que pueda tapar. Dime que las centrales son invulnerables y dime que no hay posibilidad de que vuelva a ocurrir un grave accidente en una central. O dime que si hay un grave accidente, no supone ningún riesgo para la población mundial y que no habrá más cancer por culpa de lo de Fukushima y que los ovarios de las japonesas y quizá de más mujeres del mundo, estan a salvo. Puede que así me convenzas de que la energía nuclear es controlable y que sus riesgos merecen la pena.

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Re: ¿Son seguras las centrales nucleares?
« Respuesta #207 en: Jueves 24 Marzo 2011 15:08:57 pm »

Es mas, hagamoslo al reves..



Efectivamente, hagámoslo al revés y preguntemonos por qué se han multiplicado por 17 desde Chernobyl los casos  de leucemia en bebés de meses de edad en la com. Valenciana...

Es un dato que no conocía y que me enteré anoche hablando con un padre afectado, familiar de mi mujer, al cual se lo había dicho uno de los médicos que estan tratando de hacer 'algo' por su hija.

Es triste que haya que dar este tipo de argumentos à la Vigorro.
   

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Re: ¿Son seguras las centrales nucleares?
« Respuesta #208 en: Jueves 24 Marzo 2011 15:49:02 pm »
Otra cosa que no se ha dicho por aquí, supongo que porque poca gente conoce, es el tema de la extracción del uranio y su procesamiento.

Se dice que la energía nuclear es bastante limpia, pero basta echar una ojeada al proceso de extracción, conversión a fluoruro de uranio para su enriquecimiento, etc.. para ver que de eso nada.

Por ejemplo, según Lamarsh & Baratta (2001), una central típica BWR de 1 GW consume al año 28,07 toneladas de Uranio enriquecido.

Para conseguir ese uranio, se han de sacar  31.000 toneladas de mineral de uranio, cuya riqueza media es del 0,5% (la mayor riqueza encontrada es del 2%). De ahí se extrae por medios químicos muy contaminantes lo que se llama el 'pastel amarillo' (Yellow Cake), obteniéndos unas 150 toneladas de U3O8.

Este 'pastel amarillo' se tiene que convertir en algo que se pueda licuar, de manera que pueda ser introducido en grandes centrifugadoras. Para conseguirlo, primero se reduce con carbón, con lo que se generan grandes cantidades de CO2, y luego se trata con ácido fluorídrico, hasta conseguir UF6 que es gaseoso a temperatura y presión ambiente. El hexafluoruro de uranio se comprime y enfría hasta licuarlo y se mete en las centrifugadoras para que el U238 se concentre en las paredes, mientras que el U235 se concentra en el centro, desde donde se va sacando en el momento que alcanza un 2% o un 3% de concentración.
Así, del proceso de enriquecimiento se obtiene las 28,07 toneladas que he puesto al principio, tirándose a la basura nada menos que 121,227 toneladas, que van a parar a... ??¿¿ misterio....
Después de un proceso de oxidación, se convierte el hexafluoruro de uranio en dióxido de uranio cerámico, se le da la típica forma en barras de 13,8cm de diámetro por 4,2 metros, se recubre de circaloy y a la central. (también se les añade según el tipo de reactor donde vayan a ser utilizados pequeñas cantidades de ciertos elementos, cuyo efecto suele ser el amortiguar el rendimiento en barras nuevas, de manera que éstas se comporten como las que ya están en un reactor a la hora de sustituir las gastadas)

Cuando esas barras ya no dan más de sí y son sacadas del núcleo del reactor, su composición suele ser (tomando como base los 28,07 toneladas anuales de entrada al reactor): 25.858 Kg. de Uranio de los cuales  220 Kg.son  de U235, 178 Kg. de plutonio y 873 Kgs de otros elementos (cesio, estroncio, plomo, etc...) radioactivos.

En principio, de esos productos se puede volver a reprocesar parte de ellos y volver a utilizarse, pero en la práctica eso sólo lo pueden hacer 3 paises, debido a los acuerdos sobre armas nucleares.


Hay un libro muy bueno sobre ésto, de hecho es el de referencia para los físicos atómicos, y lo recomiendo a quienes deseen adentrarse y conocer mejor los intríngulis de este mundo: Fundamentals of Nuclear Sciencie and Engineering, de J. Kenneth Shultis y Richard E. Faw.
Todos los datos que he puesto están extraidos de ahí.
   

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Re: ¿Son seguras las centrales nucleares?
« Respuesta #209 en: Jueves 24 Marzo 2011 16:12:22 pm »
accidentes

por meses

Esas listas, asi solas, no nos dicen nada... pon datos de horas de funcionamiento y nivel de los incidentes, y entonces podremos hablar... no es lo mismo un par de incidentes en una central que lleva 5 años funcionando que un par de ellos en una que lleva 40 años... y no es lo mismo que el 95% de lo que listas sea de nivel 2 que de nivel 5...




La lista de _00_ demuestra por un lado que aunque en España no hayamos tenido "problemas graves", en paises mejor preparados que el nuestro si.
Te digo lo mismo: esos datos hay que exponerlos en funcion de horas trabajadas y nivel de los incidentes... yo podria tambien hacer una lista de los incidentes en España en 2004 y saldria una lista larguisima (78 incidentes en concreto), pero luego al ver que de esos 78, 72 son de nivel 0 y 6 de nivel 1, pues la lista se convierte en una mierda, con perdon...



Citar
Por otro lado Vigorro, tu que tambien eres muy inteligente, dime que no crees que la industria nuclear tape todo lo que pueda tapar. Dime que las centrales son invulnerables y dime que no hay posibilidad de que vuelva a ocurrir un grave accidente en una central. O dime que si hay un grave accidente, no supone ningún riesgo para la población mundial y que no habrá más cancer por culpa de lo de Fukushima y que los ovarios de las japonesas y quizá de más mujeres del mundo, estan a salvo. Puede que así me convenzas de que la energía nuclear es controlable y que sus riesgos merecen la pena.
Ni he dicho que la industria nuclear no tape, ni que las centrales sean invulnerables, ni que no haya posibilidades de accidentes graves, ni que de haberlo no supusiera un peligro a nivel planetario o casi... sobre los ovarios y tal, ni idea...





A ver, yo doy por zanjado todo esto, me parece un dialogo de besugos... los numeros son los que son, y centradonos en el titutlo del topic, es clarisimo que las centrales son seguras en el sentido de que en 50 años de explotacion de cientos de centrales nos sobran dedos de una mano para contar los incidentes de nivel 6 o 7, y nos sobran dedos con las dos manos para contar los de nivel 4 o 5... si a vosotros esos numeros os parecen demasiados, tantos como para decir que las centrales no son seguras, pues ole, yo no pienso asi, y como no tengo que convencer a nadie, pues dejo el tema...

Si quereis hablar de peligros del enriquecimiento del uranio, de los residuos, etc., eso es otra cosa... yo ya he dicho que eso es lo que me lleva a querer acabar con la nuclear cuando se pueda, pero desde luego no el tema de la seguridad, y mucho menos el de atentado... por cierto, en esto de los atentados, supongo que la unica posibilidad que cabe es que un tio encañone a un operario y le obligue a parar la refrigeracion de los reactores, aunque habria que ver si los sistemas alternativos de emergencia se podrian parar de manera similar... porque de bombitas y tal nos olvidamos, ya que no creo que se pueda hacer ni un rasguño a un reactor preparado para aguantar la embestida de un avion...

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Re: ¿Son seguras las centrales nucleares?
« Respuesta #210 en: Jueves 24 Marzo 2011 16:32:19 pm »
me parece un dialogo de besugos... los numeros son los que son...

¿A los números te refieres a los 300.000 muertos por cancer según el informe de la ONU* del año pasado sobre las consecuencias de Chernobyl?

Vuelvo a decir, que ahora mismo, el desmantelar todas las nucleares podría -no es seguro ni mucho menos- afectar negativamente a mucha gente (exclusivamente en su bolsillo, más bien, porque la agricultura no depende para nada de ellas), así que no sería muy inteligente hacerlo, pero de ahí a minimizar sus efectos como haces, va bastante trecho.

PD: Y, ¡cosa curiosa! Cuando he ido a mirar donde lo había visto (http://www.who.int/ionizing_radiation/a_e/chernobyl/en/index1.html) me encuentro con que el documento (el segundo enlace de esa página http://www.undp.org/dpa/publications/chernobyl.pdf) ha sido retirado.
« Última modificación: Jueves 24 Marzo 2011 16:38:43 pm por Vaqueret »
   

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Re: ¿Son seguras las centrales nucleares?
« Respuesta #211 en: Jueves 24 Marzo 2011 16:45:21 pm »
me parece un dialogo de besugos... los numeros son los que son...

¿A los números te refieres a los 300.000 muertos por cancer según el informe de la ONU* del año pasado sobre las consecuencias de Chernobyl?

Vuelvo a decir, que ahora mismo, el desmantelar todas las nucleares podría -no es seguro ni mucho menos- afectar negativamente a mucha gente (exclusivamente en su bolsillo, más bien, porque la agricultura no depende para nada de ellas), así que no sería muy inteligente hacerlo, pero de ahí a minimizar sus efectos como haces, va bastante trecho.

PD: Y, ¡cosa curiosa! Cuando he ido a mirar donde lo había visto (http://www.who.int/ionizing_radiation/a_e/chernobyl/en/index1.html) me encuentro con que el documento (el segundo enlace de esa página http://www.undp.org/dpa/publications/chernobyl.pdf) ha sido retirado.

Coñe iba a preguntarte por él justo antes de tu PD.

Yo tenía constancia de este otro informe, pero ni de coña esas cifras que mentas...

 http://www.who.int/ionizing_radiation/chernobyl/WHO%20Report%20on%20Chernobyl%20Health%20Effects%20July%2006.pdf

PD: El informe que citas por lo visto es del 2002.. a ver si esta cacheado por algún lado...
« Última modificación: Jueves 24 Marzo 2011 16:51:28 pm por TitoYors »
   

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Re: ¿Son seguras las centrales nucleares?
« Respuesta #212 en: Jueves 24 Marzo 2011 16:56:57 pm »
me parece un dialogo de besugos... los numeros son los que son...

¿A los números te refieres a los 300.000 muertos por cancer según el informe de la ONU* del año pasado sobre las consecuencias de Chernobyl?

Vuelvo a decir, que ahora mismo, el desmantelar todas las nucleares podría -no es seguro ni mucho menos- afectar negativamente a mucha gente (exclusivamente en su bolsillo, más bien, porque la agricultura no depende para nada de ellas), así que no sería muy inteligente hacerlo, pero de ahí a minimizar sus efectos como haces, va bastante trecho.

PD: Y, ¡cosa curiosa! Cuando he ido a mirar donde lo había visto (http://www.who.int/ionizing_radiation/a_e/chernobyl/en/index1.html) me encuentro con que el documento (el segundo enlace de esa página http://www.undp.org/dpa/publications/chernobyl.pdf) ha sido retirado.

Coñe iba a preguntarte por él justo antes de tu PD.

Yo tenía constancia de este otro informe, pero ni de coña esas cifras que mentas...

 http://www.who.int/ionizing_radiation/chernobyl/WHO%20Report%20on%20Chernobyl%20Health%20Effects%20July%2006.pdf

Obviamente, el problema aquí es que no hay manera de achacar esas muertes exclusivamente a Chernobyl. Es el problema de siempre: que la estadística de cánceres coincida con la curva de dosis acumulada (ambas aumenta con el tiempo) no significa necesariamente que la ausencia de dosis lleve aparejado la ausencia de cánceres. A lo mejor es que se deben a que vivimos más estresados, justo a partir de Chernobyl....
Así que tenemos que elegir entre aceptar los datos (dejar de fumar y desmantelar centrales nucleares) o no aceptarlos (y fumar como carreteros echándoles el humo en la cara a los demás - es bueno, mata los virus de la faringitis y del resfriado- y seguir construyendo más nucleares).
¿La decisión es facil? NO. Si lo fuese, este topic no tendría razón de ser.
   

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Re: ¿Son seguras las centrales nucleares?
« Respuesta #213 en: Jueves 24 Marzo 2011 17:01:53 pm »
   

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Re: ¿Son seguras las centrales nucleares?
« Respuesta #214 en: Jueves 24 Marzo 2011 17:12:54 pm »
Vaqueret ¿puede ser este?

http://www.iaea.org/Publications/Booklets/Chernobyl/chernobyl.pdf

No, aquello era el típico recopilatorio de 'papers' de estudios médicos, no sólo de los paises afectados sino de toda europa incluyendo Turquía (recuerdo Turquía porque curiosamente era donde mayor incidencia se había encontrado ??? ) Ojo: incidencia en niños ahora, no de los adultos que fueron expuestos en su dia.
   

Desconectado Gallinero

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Re: ¿Son seguras las centrales nucleares?
« Respuesta #215 en: Jueves 24 Marzo 2011 17:56:34 pm »
me parece un dialogo de besugos... los numeros son los que son...

¿A los números te refieres a los 300.000 muertos por cancer según el informe de la ONU* del año pasado sobre las consecuencias de Chernobyl?

Vuelvo a decir, que ahora mismo, el desmantelar todas las nucleares podría -no es seguro ni mucho menos- afectar negativamente a mucha gente (exclusivamente en su bolsillo, más bien, porque la agricultura no depende para nada de ellas), así que no sería muy inteligente hacerlo, pero de ahí a minimizar sus efectos como haces, va bastante trecho.

PD: Y, ¡cosa curiosa! Cuando he ido a mirar donde lo había visto (http://www.who.int/ionizing_radiation/a_e/chernobyl/en/index1.html) me encuentro con que el documento (el segundo enlace de esa página http://www.undp.org/dpa/publications/chernobyl.pdf) ha sido retirado.

http://www.reliefweb.int/library/documents/2002/undp_rus_25jan.pdf 
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