Increased sulphur dioxide (SO2) pollution from the expanded Rio Tinto Alcan (RTA) aluminum smelter in Kitimat, B.C. will result in increased health costs for local households, an expert witness told an Environmental Appeals Board panel in Victoria, Monday.
Dr. Brian Scarfe, an economist and cost-benefit analyst from the University of Victoria, testified before the tribunal that the externalized health costs placed on residents living near the Kitimat smelter will outstrip the cost of introducing scrubbers — which remove SO2 pollution from effluent — to the RTA plant.
In 2013 the B.C. government approved RTA’s permit to increase production of the smelter. The ‘modernization’ project will limit the release of other aluminum-associated emissions including greenhouse gases, but will result in a 56 per cent increase of sulphur dioxide being pumped into the airshed.
B.C. ruled RTA was not required to install scrubbers to prevent the SO2 increase from 27 to 42 tonnes per day.