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ensho Donating Member (1000+ posts) Send PM | Profile | Ignore Wed Dec-02-09 12:10 PM
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2 nuke plant events - France and Japan
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Situation Update No. 1
On 02.12.2009 at 14:19 GMT+2

One of the reactors at the Cruas nuclear power station in Ardche, southern France was shut down on Tuesday after a problem with the cooling system. EDF, the French energy company, reported the incident just before midnight local time and shut down the reactor. Water from the Rhone river is used to cool the nuclear plant, which employs more than 1,000 people, and the French Nuclear Safety authority (ASN) said vegetation had blocked the intake. The flow of water was restored in the early hours of the morning and the emergency alert was lifted around 6:30 on Wednesday. The accident was classified as a level two situation on the seven point scale of international nuclear incidents. ASN confirmed that the reactor was under control at all times and there was no affect on the environment. The Cruas site has four reactors, producing around 900 Megawatts each. It provides Rhne-Alpes with around 40 per cent of its power.


Situation Update No. 2
On 02.12.2009 at 08:54 GMT+2

Nearly 30 workers were exposed to radiation after liquid waste leaked at a nuclear plant in Shizuoka Prefecture, Chubu Electric Power Co. has announced. The accident occurred at the No. 3 reactor at the Hamaoka Nuclear Power Station in Omaezaki, Shizuoka, when 53 liters of highly-concentrated nuclear waste solution leaked inside the plant's auxiliary building on Tuesday afternoon. Twenty-nine workers out of the 34 who were at the scene -- including four workers who were inspecting a concentrated liquid waste storage tank and others who rushed to the scene following the accident -- were exposed to up to 0.2 millisieverts of radiation. The company said the amount poses no health risk to the workers, nor did the leakage affect the environment outside the radiation controlled area. A massive amount of radioactivity at 1.2 billion becquerels -- 324 times higher than the government-set standard of 3.7 million becquerels -- was detected in the waste solution, the company said. At the time of the accident, the four workers were pumping wastewater out of the storage tank, which keeps concentrated liquid waste for a certain period to lower radioactivity in the solution. After an alarm about a water leakage sounded at around 4:15 p.m., the workers found liquid waste leaking from around four drain valves outside the tank and flooding the floor. The auxiliary building that houses the tank has three stories above ground and two below, and the accident occurred on the second floor in the basement. Chubu Electric Power said it was likely that the waste liquid poured out of the drain valves as its stickiness impaired the flow inside pipes during the inspection. "We are sorry for causing concern. We will try to determine the cause as soon as possible and prevent a recurrence," said a public relations official from the Shizuoka branch of the company. Senior officials of the branch visited the Shizuoka Prefectural Government on Wednesday morning to explain the accident. "There was no problem (with many workers being exposed to radiation) as they responded to the accident in line with the government's safety regulations," said an official from the company. The government's Nuclear and Industrial Safety Agency said the accident posed no health or environmental risks. "The amount of radiation that the workers were exposed to is about the same level as that for regular operations and does not pose a problem as the work was intended to confirm safety at the plant. Since the leaked solution did not leave the radiation controlled area, the incident would not have an immediate impact on safety," said an official from the agency.

so they got 'regular' radiation plus the accident's radiation but that's alright?
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