Image: YLE

The article is based on reports by sociologist Anna Kontula, who lived with Polish workers at the site for one month.

"Only a small number of employees work according to Finnish labour contract rules. It's hard to separate legal labour from grey-market labour, because taxes aren't paid for all the workers," says Kontula.

She told the magazine that the foreign workers themselves can't make complaints, because they will be sent back home. Neither do they have the opportunity to find another job in the area.

In addition, says Kontula, any complaints that are made lead nowhere because labour inspectors usually don't have time to look into the matter until the employee in question has already finished his job and returned home.