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Wildfire smoke linked to rise in ER visits for asthma: study [Video]

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Canadian National News

A new study says visits to emergency departments for asthma spiked during a first wave of unprecedented wildfire smoke in 2023, but patient numbers returned to normal during a second wave weeks later.

The researchers say the first wave may have served as a wake-up call so people learned to protect themselves from poor air quality before the wildfire smoke struck again.

Lead author Hong Chen says patients may have received preventive medications that helped keep their asthma under control and prepared themselves for the second wave by staying indoors and using air cleaners.

The researchers analyzed emergency department visits in Ontario in June 2023 because that was the worst wildfire season the province had ever experienced.

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The study, published in the Canadian Medical Association Journal on Monday, comes as …

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