Ontario will lower diesel exposure limits in mines in an effort to help the health of underground workers.
Labour Minister Monte McNaughton says long-term exposure to diesel exhaust can cause bladder and lung cancer.
He says the province will reduce the exposure levels created by diesel-powered machines by 70 per cent.
McNaughton says the province will also require improvements to ventilation in mines and will also allow track-mounted machines controlled by an operator to probe for safety hazards.
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Local United Steelworkers union leader Nick Larochelle says the reduction is welcome news.
He says it is an “awesome start,” but wants the emission limits lowered even further.