"The industrial-scale manufacture of carbon nanotubes is increasing, with a global market in excess of £1 billion. This research shows that there is a potential hazard in the manufacture of certain types of carbon nanotubes" says Ken Donaldson, Professor of Respiratory Toxicology.
Similarities with asbestos
The research found that longer carbon nanotubes caused a reaction in the lung lining similar to that of asbestos.
Longer asbestos fibres are more harmful than shorter fibres since they also get stuck in the lung cavity where they can cause diseases including mesothelioma.