A growing number of Japanese workers who are risking their health to shut down the crippled Fukushima Daiichi nuclear power plant are suffering from depression, anxiety about the future and a loss of motivation, say two doctors who visit them regularly.

But their psychological problems are driven less by fears about developing cancer from radiation exposure and more by something immediate and personal: Discrimination from the very community they tried to protect, says Jun Shigemura, who heads a volunteer team of about 10 psychiatrists and psychologists from the National Defense Medical College who meet with Tokyo Electric Power Co nuclear plant employees.

They tell therapists they have been harangued by residents displaced in Japan's nuclear disaster and threatened with signs on their doors telling them to leave. Some of their children have been taunted at school, and prospective landlords have turned them away.

"They have become targets of people's anger," Shigemura said.

TEPCO workers - in their readily identifiable blue uniforms - were once considered to be among the elite in this rural area 230 kilometers north of Tokyo. But after the March 11, 2011, earthquake and tsunami set off meltdowns at the Fukushima plant, residents came to view them as "perpetrators", Shigemura said.

Many TEPCO families in the area now hide their link to the company for fear of criticism, local doctors and psychiatrists say.

Except in rare cases, TEPCO has repeatedly declined journalists' requests to interview workers, and the workers themselves have shunned virtually all media attention.

One former TEPCO employee who lived in Tomioka, inside the 20-km exclusion zone around the plant, said during a rare visit to the Fukushima plant in February that she was frequently harassed by evacuees among the 100,000 displaced by the disaster.

"Many people who want to go home are getting frustrated and they often yell at me, 'How are you going to make it up to us?'" said Saori Kanesaki, a former visitor guide at the Fukushima plant.

More than a half century ago, many Japanese survivors of the US bombings of Hiroshima and Nagasaki were stigmatized due to fears about their exposure to radiation. But the Fukushima disaster has thrown up a completely new kind of discrimination because of the workers' links to TEPCO, a company widely despised throughout Japan for its mishandling of the disaster.

In addition to the discrimination, the TEPCO nuclear workers, who are specially trained, are anxious that they will be transferred to a completely different kind of job, such as clerical work, if they should surpass the exposure limit, the doctors say.

"More than health risks, they are worried about social risk and employment risk," said Takeshi Tanigawa, an epidemiologist with Ehime University's medical school who visited the plant after the disaster and was the one of the first to report its harsh working conditions, which have since improved. He has been back 15 times since, and Shigemura later volunteered to join him.

The Japanese public and media, meanwhile, has offered the workers little praise, unlike the Western media, which during the height of the crisis portrayed the remaining band of workers at the plant as the heroic "Fukushima 50". The domestic media instead emphasized how the dangers faced by the workers reflected the risks of nuclear power.

Culture helps explain some of these dynamics, including the strong Japanese sense of duty and group responsibility.

"People believe the workers share in the responsibility for the disaster even though they didn't cause it," Tanigawa said.

Such discrimination weighs heavily on the workers, said Shigemura.

"Showing appreciation to the workers is an urgent need. It's totally lacking," Shigemura said, adding that he believes stigmatization is a key factor in influencing the workers' psychological distress.

The Associated Press