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» How bad was it? The water leak was found Sunday on a device used to purify the seawater used to cool off damaged reactors. They stopped the leak by stacking sandbags against the concrete barrier surrounding the device. The water itself, authorities say, contained higher-than-usual levels of cesium 137, a radioactive substance. It’s not clear that any of this water made it to the Pacific Ocean. The reactor was greatly damaged during the March earthquake.

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02 Aug 2011 10:18

See the red spots? You know, the ones surrounded by blue and green? Those represent 10 sieverts per hour of radiation. That is extremely high and could lead to death within seconds. And at the Fukushima site, that’s what they’re apparently still dealing with … mind you, five months after the fact. “Radiation leakage at the plant may have been contained or slowed but it has not been sealed off completely,” noted Osaka University professor and nuclear engineering expert Kenji Sumita. “The utility is likely to continue finding these spots of high radiation.” To put this in perspective, add three zeros to the number 10, to make it 10,000 millisieverts per hour (mSv). Then, take a look at this graphic. Yeah. Scary as hell, right? We’ll say. source

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We’re at a point where merely opening a door can cause a radiation leak of some kind. That’s what plant operators had to deal with today, as they opened the doors to Fukushima’s No. 2 plant to cool things off and let some air inside. They hope to install a cooling system to prevent an explosion in the plant. Meanwhile, they hope to restart the cleanup process quickly, which was recently stalled. To give you an idea of what they need to clean up, let’s put it this way: 110,000 tons of highly-radioactive water, enough to fill 40 Olympic-sized swimming pools which absolutely nobody should swim in. Officials fear that things could get really bad — think water overflowing all over the place — if they don’t act soon to deal with the water. source

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Things were so dangerous after a blast at Fukushima Daiichi reactor No. 1 that workers didn’t enter the building at all afterwards. Until today. Nearly two months after the hydrogen explosion that greatly damaged the plant on March 11th, NHK reports that workers re-entered the building housing the reactor for the first time since the initial blast. The workers plan to install an air purifier in the plant, reportedly “aimed at preventing workers from suffering internal radiation exposure when they work on setting up a new cooling system at the No. 1 reactor.” That must be a really good air purifier. (Above: A pic of a robot working in the plant, via TEPCO) source

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This little guy right here? He’s a T-Hawk drone, a little unmanned remote-controlled flying thingamajig, built by Honeywell, that engineers used to get an up-close view of the situation inside the damaged Fukushima reactors. It can shoot both normal pictures as well as infrared shots. Plus, if you own one of these, you’ll be the coolest kid on your block. Engineers say that they’ll have some photos to share with the world on Monday. But we want them now! source

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