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The weather plays an important role in childhood asthma because some weather changes and conditions can cause serious asthma problems. For example, changes in temperature and humidity as well as barometric pressure can cause asthma attacks by aggravating the nose and airways of those with asthma, reports the American Academy of Allergy, Asthma and Immunology.
Pollution also aggravates asthma, as do conditions in which the air is heavy with particles, such as in a dust storm or when there is smoke from a large fire. Therefore, experts suggest keeping children who have asthma indoors on ozone-alert days and on days when the air is thick with smoke.