Tag Archive: air pollutants

Jul 14

Outdoor Air Pollution and Allergy

The worsening of asthma due to outdoor pollutants may occur for a number of reasons. For example, many of these pollutants are irritants, and so exposure to SO, and NO, may induce an acute narrowing of the airway. Associated with this is breath­ing difficulty, while exposure to ozone causes coughing and an inability to breathe deeply, which again leads to the sensation of breathlessness.

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