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Japan Earthquake/Tsunami

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Kyodo reports that the US military is to fly an unmanned plane over Fukushima, equipped with infrared sensors, to give an aerial view of what is going on.



This is an extract is from the US embassy's advice to its citizens in Japan: "Consistent with the NRC [Nuclear Regulatory Commission] guidelines that apply to such a situation in the United States, we are recommending, as a precaution, that American citizens who live within 50 miles (80 kilometers) of the Fukushima Nuclear Power Plant evacuate the area or to take shelter indoors if safe evacuation is not practical."



The US Environmental Protection Agency says it is increasing its monitoring of radiation along the western coast and Pacific territories, AP reports. However the US Nuclear Regulatory Commission has said it does not expect harmful levels to reach North America.


The EPA routinely monitors this information, and it is likely they are setting up monitoring for future study/litigation purposes.



The AP news agency is quoting Tepco as saying a new power line is almost ready which could end the crisis. The disruption of power to the pumps which send coolant through the reactors is what led to their overheating.



Gregory Jaczko, head of the US Nuclear Regulatory Commission (NRC) has said there is no water left in the spent fuel pool in reactor four, adding: "We believe that radiation levels are extremely high." Mr Jaczko was speaking to Congress in Washington and it was not immediately clear where his information had come from.
 
Do you think they will get it under control Matt

Yes. But they've not handled it as well as it could of been.

Partially because they didn't inform the public that there were waste fuel rods in storage ponds within the containment buildings. (not in the containment chamber, but next to the reactor where the hydrogen explosions occurred). Also the fact that deactivated reactors have started causing problems, because of the storage ponds is another example of where there's been unnecessary problems.




Also its an obvious design flaw if a replacement generator(s) cannot simply be driven in an plugged into the cooling system. We said that straight away.

5 days to reactivate a cooling system... thats certainly got to be looked at.

the whole weakness of the system is the cooling system.
 

Yes. But they've not handled it as well as it could of been.

Partially because they didn't inform the public that there were waste fuel rods in storage ponds within the containment buildings. (not in the containment chamber, but next to the reactor where the hydrogen explosions occurred). Also the fact that deactivated reactors have started causing problems, because of the storage ponds is another example of where there's been unnecessary problems.




Also its an obvious design flaw if a replacement generator(s) cannot simply be driven in an plugged into the cooling system. We said that straight away.

5 days to reactivate a cooling system... thats certainly got to be looked at.

the whole weakness of the system is the cooling system.

The whole weakness was building a nuclear plant on a coastline next to two shifting continental plates in a region that's had a history of massive quakes!

Apart from that they were spot on!!!
 
The US military will also fly one of its Global Hawk unmanned high-altitude reconnaissance aircraft over the site, possibly later on Thursday, to take photographs of the inside the building which houses reactor 4, Japanese government sources have told the Kyodo news agency. Global Hawks are already being used to survey the devastation caused by the earthquake and tsunami.
 

My time is taken up unfortunately.

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Japan's Nuclear and Industrial Safety Agency has said it is also concerned about the spent fuel storage pool inside the building housing reactor 3 at Fukushima Daiichi. The pools at both reactors 3 and 4 are reportedly boiling - there may not even be any water left in reactor 4's pool - and unless the spent fuel rods are cooled down, they could emit large quantities radiation. Radioactive steam was earlier said to be coming from reactor 3's pool. If cooling operations did not proceed well, the situation would "reach a critical stage in a couple of days", an agency official told the Kyodo news agency.


Emit large quanities?

If the spent fuel is becomes volatile (i.e. in a fire). It doesn't just spontaneously change state to gas phase and spread out over a large area. It needs fire to do that.



But that spent fuel - itself - is emitting gamma radiation and neutrons. so it means getting close to the building is very hazardous.



Only if theres a fire would it pose a risk off the site of the nuclear plant.
 
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Japan's foreign ministry has asked foreign diplomats and government officials to remain calm and "accurately convey information provided by Japanese authorities concerning the plant", according to NHK television.

Thats aimed at the EU energy commissioner and possibly the head of the US NRC ?

That global hawk's view tomorrow should give the US a better idea of what's going on inside the plant buildings (over and above what they can see via satellite, but the satellite images they can't release publicly) ... that and the fact they're getting radiation readings from their military bases and ships
 
Japan's foreign ministry has asked foreign diplomats and government officials to remain calm and "accurately convey information provided by Japanese authorities concerning the plant", according to NHK television.

Thats aimed at the EU energy commissioner and possibly the head of the US NRC ?

That global hawk's view tomorrow should give the US a better idea of what's going on inside the plant buildings (over and above what they can see via satellite, but the satellite images they can't release publicly) ... that and the fact they're getting radiation readings from their military bases and ships

They're in a bad situation: they're trying to keep a lid on panic, so you can understand them wanting outside views on the status of the plant to disappear. But they've let Tepco tell lies about the plant for years, so they cant have it both ways.
 

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