"MONTREAL -- A new report is suggesting the air at many Quebec construction sites contains levels of asbestos at or above provincial norms, raising fresh questions about whether the substance can be handled safely in Canada.

The study, released by Quebec's Public Health Department, examined 3,000 air samples taken from worksites that were considered at elevated risk for asbestos exposure.

It found that 43 per cent of the sites had concentrations of the mineral's cancer-causing fibres that met or exceeded the limit."

Andy Blatchford reports for the Canadian Press April 4, 2011. [2]