Asbestos Insulation boards were discovered in Bangor University workshops 14 years after it was banned.

Brown asbestos is considered such a threat to health that handling it demands the highest safety standards.

Yet at Bangor University, workers have been exposed to it 14 years after it was banned in the building industry.

The material was widely used in the 50s and 60s

"We have been in the middle of this stuff for years and no one said a thing," a worker who wished to remain anonymous told the BBC Wales' current affairs programme "Taro Naw".

Following an investigation by the programme, it has emerged that 11 workers and former staff have been diagnosed with asbestos-related disease.

In a statement, the university said: "The college does not believe that any academic staff or students have been put in danger."

Asbestos became widely used in the 50s and 60s as a flame retardant material.

But in the 80s both blue and brown asbestos were banned when the health risks were discovered.

However, the time-lag between exposure and developing lung disease can be as much as 40 years.

Interviewed on the programme, solicitor Joanna Stevens said: "There are regulations in place regarding asbestos removal and nobody should be in the area.