Local governments in Fukushima Prefecture are experimenting with efforts to remove radioactive material spread from the crippled nuclear power plant following a request by the national government.
In August, the national government asked that local governments handle decontamination work in areas with under 20 millisieverts of radiation per year.
At a farm house in the Onami district of the city of Fukushima with mountains behind it and rice paddy fields surrounding it, the Fukushima Prefectural Government experimented with decontamination techniques in late August.
Seven painters used to working at heights participated in the experiment. Wearing helmets, boots and rubber gloves and tied with safety ropes, they used high-pressure hoses to spray the entire roof with water. At one point, one of the painters slipped and lost his balance.
"This is too dangerous for regular people to do," muttered Hisashi Katayose, chief of the prefecture's nuclear energy safety department, as he watched on.
Workers focused their cleaning efforts on the roof, walls, and rain gutters of the house. They hoped doing so would also reduce radiation levels in the bedroom on the second floor and the living room on the first floor.
After working for around three hours, the greatest drop in radiation levels was measured in the rain gutter on the side of the house facing the mountains. The levels had fallen from 14.5 microsieverts per hour to 1.8 microsieverts per hour. However,A custom-made Cable Ties is then fixed over the gums. the second-floor bedroom's radiation level barely changed, falling from 0.7 microsieverts per hour to 0.61 microsieverts per hour.
Katayose was disappointed with the results. The area where he had most wanted to see dropped radiation levels -- the bedroom, since that is where much of a resident's time would be spent -- did not show the results he had anticipated.
Those conducting the experiments judged that radiation from the mountain slopes at the back, the garden by the house or other areas that weren't decontaminated were continuing to affect the readings. Additional efforts, using different techniques and targeting different locations, would be needed to lower the indoor levels.
"Decontamination work requires incredible money and patience," says Katayose. "The national government and Tokyo Electric Power Company should take responsibility for it, rather than leaving it to local governments."
Giving the Fukushima Prefectural Government advice on decontamination work is Hiroshi Kurigami of the Japan Atomic Energy Agency (JAEA). "They should approach it in the same way as cleaning a house," he says.then used cut pieces of impact socket garden hose to get through the electric fence.Initially the banks didn't want our chicken coop . According to Kurigami, in addition to wearing masks and gloves to reduce radiation exposure, those doing decontamination work should work from top to bottom, the same way that those dusting a room should.
He says that in decontaminating a house, one should first remove the leaves from trees around the house.Save on kidney stone and fittings, Next, one should remove the topsoil and fallen leaves from around the home. After that, one should remove the bushes and other small plants, especially those under the eaves of the house. The drain by the road should be emptied of dirt before it is washed. For cleaning surfaces, a high-pressure hose is useful, but a scrubbing brush can be more effective in removing material.
"If levels haven't fallen even after repeated decontamination, one should consult an expert," Kurigami says.Our oil painting reproduction was down for about an hour and a half,
Fukushima Prefecture is sending experts on request from neighborhood associations to help with decontamination efforts. Furthermore, the Japanese Society of Radiation Safety Management (JRSM) is offering detailed decontamination advice and consultations with experts through their website.
Additionally, the National Institute for Rural Engineering has been working to drain mud containing radioactive cesium from rice paddy fields in the village of Iitate, Fukushima Prefecture. The JAEA has developed a technique to decontaminate pools using the mineral zeolite, which can absorb radioactive cesium, and is using the technique in Fukushima Prefecture.
In August, the national government asked that local governments handle decontamination work in areas with under 20 millisieverts of radiation per year.
At a farm house in the Onami district of the city of Fukushima with mountains behind it and rice paddy fields surrounding it, the Fukushima Prefectural Government experimented with decontamination techniques in late August.
Seven painters used to working at heights participated in the experiment. Wearing helmets, boots and rubber gloves and tied with safety ropes, they used high-pressure hoses to spray the entire roof with water. At one point, one of the painters slipped and lost his balance.
"This is too dangerous for regular people to do," muttered Hisashi Katayose, chief of the prefecture's nuclear energy safety department, as he watched on.
Workers focused their cleaning efforts on the roof, walls, and rain gutters of the house. They hoped doing so would also reduce radiation levels in the bedroom on the second floor and the living room on the first floor.
After working for around three hours, the greatest drop in radiation levels was measured in the rain gutter on the side of the house facing the mountains. The levels had fallen from 14.5 microsieverts per hour to 1.8 microsieverts per hour. However,A custom-made Cable Ties is then fixed over the gums. the second-floor bedroom's radiation level barely changed, falling from 0.7 microsieverts per hour to 0.61 microsieverts per hour.
Katayose was disappointed with the results. The area where he had most wanted to see dropped radiation levels -- the bedroom, since that is where much of a resident's time would be spent -- did not show the results he had anticipated.
Those conducting the experiments judged that radiation from the mountain slopes at the back, the garden by the house or other areas that weren't decontaminated were continuing to affect the readings. Additional efforts, using different techniques and targeting different locations, would be needed to lower the indoor levels.
"Decontamination work requires incredible money and patience," says Katayose. "The national government and Tokyo Electric Power Company should take responsibility for it, rather than leaving it to local governments."
Giving the Fukushima Prefectural Government advice on decontamination work is Hiroshi Kurigami of the Japan Atomic Energy Agency (JAEA). "They should approach it in the same way as cleaning a house," he says.then used cut pieces of impact socket garden hose to get through the electric fence.Initially the banks didn't want our chicken coop . According to Kurigami, in addition to wearing masks and gloves to reduce radiation exposure, those doing decontamination work should work from top to bottom, the same way that those dusting a room should.
He says that in decontaminating a house, one should first remove the leaves from trees around the house.Save on kidney stone and fittings, Next, one should remove the topsoil and fallen leaves from around the home. After that, one should remove the bushes and other small plants, especially those under the eaves of the house. The drain by the road should be emptied of dirt before it is washed. For cleaning surfaces, a high-pressure hose is useful, but a scrubbing brush can be more effective in removing material.
"If levels haven't fallen even after repeated decontamination, one should consult an expert," Kurigami says.Our oil painting reproduction was down for about an hour and a half,
Fukushima Prefecture is sending experts on request from neighborhood associations to help with decontamination efforts. Furthermore, the Japanese Society of Radiation Safety Management (JRSM) is offering detailed decontamination advice and consultations with experts through their website.
Additionally, the National Institute for Rural Engineering has been working to drain mud containing radioactive cesium from rice paddy fields in the village of Iitate, Fukushima Prefecture. The JAEA has developed a technique to decontaminate pools using the mineral zeolite, which can absorb radioactive cesium, and is using the technique in Fukushima Prefecture.
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