For People Who Have Underlying Heart Conditions or Respiratory Illnesses — Such as Asthma or Chronic Lung Disease — Can Exposure to Wildfire Smoke Be Serious?

Yes. Believe it or not, the World Health Organization estimates that particulate air pollution kills a LOT more people every year through heart attacks than it does through lung problems like lung cancer or emphysema.

Click here to read more myths of the tiny particles:

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