Subway air quality study finds that commuters on Line 2 are exposed to higher levels of pollution

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Subway air quality study finds that commuters on Line 2 are exposed to higher levels of pollution
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A new independent report has found that subway riders travelling on Line 2 are exposed to more than twice the amount of fine particulate matter than they would be on Line 1.

, which was requested by Toronto’s board of health, found that the level of fine particulate matter across the subway system is “high enough to warrant mitigation” but it noted that “Line 2 needs to be a priority” given its higher level of air pollution.

The report does note that riding the subway remains a “health-supportive way to travel,” especially when compared to driving. But it says that “a continuous improvement approach should be adopted” in order to keep pollution levels in check. Other potential mitigation measures outlined in the report include “implementing platform-edge doors, adjusting tunnel and track maintenance activities and procuring and using alternative materials for moving parts.”

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