TOKYO (Reuters) – A scare over temperatures rising near danger level in a reactor at Fukushima Daiichi nuclear plant, where workers are battling to prevent a resurgence of the radiation crisis, could be a false alarm, the plant operator said on Monday.
Instruments showed the temperature inside the plant’s No.2 reactor topped 90 Celsius on Monday, double what it was a month ago and close to boiling point, in which water cooling nuclear fuel in the reactor could evaporate and start a new meltdown.
But a faulty thermometer was likely giving false readings, said Tokyo Electric Power Co, operator of the plant 240 km (150 miles) northeast of Tokyo.
The Fukushima plant’s cooling system was wrecked by the March 11 earthquake and tsunami, triggering reactor meltdowns and a radiation crisis that has caused widespread contamination and mass evacuations.
Tokyo Electric, or Tepco, said it was able to bring the temperature down at two other places in the reactor to about 33C from over 40C a week ago by pumping more water into it.
“Following our cooling efforts temperatures at the two other locations are declining steadily while that at the location in question keeps rising. This leads us to think that the thermometer at the location in question is not functioning properly, rather than the actual temperature rising,” Junichi Matsumoto, Tepco’s general manager, told reporters on Monday.
Matsumoto said there was little sign of steam, which would be produced when water is at such a high temperature, and Tepco believes the reactor is still in cold shutdown, meaning temperatures are stable below boiling point.
The government announced on December 16 that the plant’s reactors had reached a state of cold shutdown, a milestone in cleanup efforts and a pre-condition for allowing about 80,000 residents evacuated from a 20-km (12-mile) radius of the plant to return home.
Environment Minister Goshi Hosono said he believed the plant was still in cold shutdown but warned against complacency.
“The instruments are showing readings that are difficult to understand but I believe we don’t have to change our view that the plant is in cold shutdown,” Hosono said in parliament.
“Nevertheless we continue to assess the situation ready for all possibilities.”
Glitches continue to dog Tepco nearly a year after the disaster. Heat is not the only problem the utility and its workers have to battle — sub zero winter temperatures have frozen many parts of the miles of hastily installed plastic pipes at the plant, creating ruptures and causing the radioactive water they carry to leak.
Shattered trust in the safety of nuclear energy has prevented the restart of reactors elsewhere shut for routine maintenance, straining power supply and threatening blackouts.
Only three of Japan’s 54 nuclear reactors are now operating. Without approval for restarts, all of them could be shut by the end of April, boosting the use of fossil fuels and adding over $30 billion a year to the nation’s energy costs, a government estimate said.
A visiting team of U.N. nuclear experts has backed stress tests aimed at showing Japan’s nuclear plants can withstand the sort of disasters that devastated Fukushima Daiichi.
(Reporting by Shinichi Saoshiro; Editing by Michael Watson)
Mochila insert follows …
Trump ‘has done nothing wrong’: Lindsey Graham does not think ethnic cleansing is an impeachable offense
Sen. Lindsey Graham (R-SC) slammed President Donald Trump for allowing Turkey's ethnic cleansing of the Kurds in Syria, but then defended the president against impeachment during a Saturday night appearance on Fox News.
Graham told Fox News personality Jeanine Pirro that he worried that 15,000 ISIS fighters could escape, allowing the terrorist caliphate to reconstitute.
The South Carolina Republican declared that America "will not tolerate" ethnic cleansing.
But then he was asked about impeachment.
"Impeachment is a bunch of bull," Graham declared. "It is BS."
"The president has done nothing wrong," Graham argued.
Trump says illegally profiting from the G-7 Summit was him ‘doing something very good for our country’
President Donald Trump attacked his perceived political opponents on Saturday even as he attempted to defend his decision to host the G-7 Summit at his Trump National Doral Miami golf club.
"I thought I was doing something very good for our country by using Trump National Doral, in Miami, for hosting the G-7 leaders," Trump claimed.
"I announced that I would be willing to do it at no profit or, if legally permissible, at zero cost to the USA. But, as usual, the hostile media and their Democrat partners went crazy!" Trump argued.
Ethics officials have said Trump's decision to choose Doral is a clear violation of both the constitution's domestic and foreign emolument clauses.
Boris Johnson said he would rather be ‘dead in a ditch’ than delay Brexit — but just asked to extend deadline
Prime Minister Boris Johnson is to write to Brussels seeking a Brexit deadline extension after MPs voted Saturday to demand he delay Britain's October 31 departure date.
In a phonecall with European Council President Donald Tusk after the vote, Johnson said he would send the letter mandated by MPs to seek more time, a EU source told AFP.
"The PM confirmed that the letter would be sent to Tusk today," the source said.
"Tusk will on that basis start consulting EU leaders on how to react. This may take a few days," he added.
Tusk said on Twitter that he was "waiting for the letter".