Almost a year after Japan pledged to double hazard pay at the stricken Fukushima No. 1 nuclear plant, workers are still in the dark about how much extra they are getting paid — if anything — for cleaning up the worst nuclear disaster since Chernobyl.

Under pressure to improve working conditions at the crippled Fukushima plant after a series of radioactive water leaks last year, Tokyo Electric Power Co. President Naomi Hirose promised in November to double the hazard pay the utility allocates to its subcontractors for plant workers. That would have increased the amount each worker is supposed to earn to about ¥19,000 ($180) a day in hazard pay.

Only one of the more than three dozen workers interviewed by Reuters from July through September said he received the full hazard pay increase promised by Tepco. Some workers said they got nothing. In cases where pay slips detailed a hazard allowance, the amounts ranged from $36 to about $90 a day — at best half of what Hirose promised.