Новости BBC. Уровень радиации превышен в 1000 раз.
а, вот откуда ветер-то дует.
Это BBC передает (тоже как-то долго держали эту информацию)
Japan warns of small radiation leak at nuclear plant
File picture of the Fukushima nuclear plant in northeastern Japan Pressure in one of the six reactors is considerably higher than normal, Japan's nuclear agency says
Continue reading the main story
Japanese Earthquake
Japanese authorities have warned there could be a small radiation leak from a nuclear reactor whose cooling system was knocked out by the earthquake.
Technicians at the Fukushima Daiichi plant are set to release vapour from the unit in question to lower the pressure and prevent a meltdown.
This carries a risk that a small amount of radioactive material could leak, officials say.
The government has ordered about 45,000 people to evacuate the area.
Reports quoted Japan's nuclear safety watchdog as saying radioactivity levels in the control room of the Fukushima plant were running at 1,000 times normal.
The watchdog also said radioactivity levels near the plant had risen.
It was unclear whether the apparent increase in radiation had been caused by the failed cooling system.
Reports also said that cooling systems had also failed in three reactors at a second nuclear power plant, Fukushima Daini, 11km (7 miles) south of Daiichi.
Wind factor
A total of 11 reactors at four nuclear power stations automatically closed when the earthquake hit on Friday.
The prime minister declared a "nuclear emergency" - under Japanese law, an emergency must be declared if a cooling system fails, if there is a release of radiation, or if there is a dangerous level of water in the reactor.
Japan's nuclear safety agency said pressure inside one of six reactors at the Fukushima Daiichi plant, some 270km north-east of Tokyo, was considerably higher than normal.
Authorities say they are taking wind direction into account when planning the release of radioactive vapour, which they insist would not be in quantities big enough to affect human health.
"It's possible that radioactive material in the reactor vessel could leak outside but the amount is expected to be small and the wind blowing towards the sea will be considered," Chief Cabinet Secretary Yukio Edano told a news conference.
The reactor at the Fukushima Daiichi power station that triggered the emergency alert was the 40-year-old Reactor 1, one of six on the site.
Continue reading the main story
AFFECTED POWER PLANTS
* Onagawa - all three reactors shut down automatically
* Fukushima Daiichi - reactors 1,2 and 3 shut down automatically; reactors 4,5 and 6 were not in operation; reactor 1 was not cooling as expected
* Fukushima Daini - all four reactors shut down automatically
* Tokai - single operational reactor shut down automatically
The earthquake cut electricity supplies to the power station, triggering an automatic shut-off for the reactors.
Diesel-powered generators kicked in to provide enough power for cooling and other basic functions.
But it is understood that at least one back-up generator failed, so causing the cooling system to malfunction.
Reactors 1, 2 and 3 automatically shut down when the magnitude 8.9 quake shook the plant, while reactors 4, 5 and 6 were not in operation as they were undergoing scheduled inspections.
The reactors are Boiling Water Reactors (BWR), one of the most commonly used designs, and widely used throughout Japan's fleet of nuclear power stations.
Heat is produced by a nuclear reaction in the core, causing the water to boil, producing steam. The steam is directly used to drive a turbine, after which it is cooled in a condenser and converted back to water. The water is then pumped back into reactor core, completing the loop.
In total, the country has 55 reactors providing about one-third of the nation's electricity.
http://www.bbc.co.uk/news/world-asia-pacific-12720219
Это BBC передает (тоже как-то долго держали эту информацию)
Japan warns of small radiation leak at nuclear plant
File picture of the Fukushima nuclear plant in northeastern Japan Pressure in one of the six reactors is considerably higher than normal, Japan's nuclear agency says
Continue reading the main story
Japanese Earthquake
Japanese authorities have warned there could be a small radiation leak from a nuclear reactor whose cooling system was knocked out by the earthquake.
Technicians at the Fukushima Daiichi plant are set to release vapour from the unit in question to lower the pressure and prevent a meltdown.
This carries a risk that a small amount of radioactive material could leak, officials say.
The government has ordered about 45,000 people to evacuate the area.
Reports quoted Japan's nuclear safety watchdog as saying radioactivity levels in the control room of the Fukushima plant were running at 1,000 times normal.
The watchdog also said radioactivity levels near the plant had risen.
It was unclear whether the apparent increase in radiation had been caused by the failed cooling system.
Reports also said that cooling systems had also failed in three reactors at a second nuclear power plant, Fukushima Daini, 11km (7 miles) south of Daiichi.
Wind factor
A total of 11 reactors at four nuclear power stations automatically closed when the earthquake hit on Friday.
The prime minister declared a "nuclear emergency" - under Japanese law, an emergency must be declared if a cooling system fails, if there is a release of radiation, or if there is a dangerous level of water in the reactor.
Japan's nuclear safety agency said pressure inside one of six reactors at the Fukushima Daiichi plant, some 270km north-east of Tokyo, was considerably higher than normal.
Authorities say they are taking wind direction into account when planning the release of radioactive vapour, which they insist would not be in quantities big enough to affect human health.
"It's possible that radioactive material in the reactor vessel could leak outside but the amount is expected to be small and the wind blowing towards the sea will be considered," Chief Cabinet Secretary Yukio Edano told a news conference.
The reactor at the Fukushima Daiichi power station that triggered the emergency alert was the 40-year-old Reactor 1, one of six on the site.
Continue reading the main story
AFFECTED POWER PLANTS
* Onagawa - all three reactors shut down automatically
* Fukushima Daiichi - reactors 1,2 and 3 shut down automatically; reactors 4,5 and 6 were not in operation; reactor 1 was not cooling as expected
* Fukushima Daini - all four reactors shut down automatically
* Tokai - single operational reactor shut down automatically
The earthquake cut electricity supplies to the power station, triggering an automatic shut-off for the reactors.
Diesel-powered generators kicked in to provide enough power for cooling and other basic functions.
But it is understood that at least one back-up generator failed, so causing the cooling system to malfunction.
Reactors 1, 2 and 3 automatically shut down when the magnitude 8.9 quake shook the plant, while reactors 4, 5 and 6 were not in operation as they were undergoing scheduled inspections.
The reactors are Boiling Water Reactors (BWR), one of the most commonly used designs, and widely used throughout Japan's fleet of nuclear power stations.
Heat is produced by a nuclear reaction in the core, causing the water to boil, producing steam. The steam is directly used to drive a turbine, after which it is cooled in a condenser and converted back to water. The water is then pumped back into reactor core, completing the loop.
In total, the country has 55 reactors providing about one-third of the nation's electricity.
http://www.bbc.co.uk/news/world-asia-pacific-12720219