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      Ultrafine particles in the air linked to 1,000 deaths a year in Montreal, Toronto, says new study | CBC.ca Loaded

      Ultrafine particles in the air linked to 1,000 deaths a year in Montreal, Toronto, says new study

      11 months ago
      Duration 4:46

      Ultrafine particles in the air linked to 1,000 deaths a year in Montreal, Toronto, says new study

      • 11 months ago
      • News
      • Duration 4:46

      Scott Weichenthal is with McGill University's department of epidemiology and biostatistics, and is the principal investigator on the study that looked at the impact of air-pollution levels on mortality from 2001 to 2016.

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