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Canada breaks record for wildfire smoke emissions

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Cal/OSHA Protection from Wildfire Smoke training video

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Wildfire smoke shifts south, putting more cities in air quality danger zone

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California wildfire smoke expected in Colorado this week

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Wildfire smoke from Canada sweeps over Chicago sky

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Canadian wildfire smoke filling southeastern Wisconsin skies

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West Coast Wildfire Smoke Makes Its Way to NYC; Air Quality Historically Low

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Canadian wildfire smoke has reached Europe

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NYC's air quality among world's worst due to Canada wildfire smoke

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Canadian wildfire smoke chokes eastern USA

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