W5: Workers claim exposure to toxic fumes at Ontario pulp mill 

In 2002, the owners of the mill in Dryden, Ont. started a project to reduce emissions, but workers on the construction project complain that they were exposed to toxic chemicals that damaged their health. CTV's W5 spoke with some of the workers about what they went through.
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W5 is Canada’s most-watched investigative, current affairs and documentary program. Tackling major stories and investigations W5 is in its 51st season.