Researchers have developed a pool chlorine hypothesis that suggests that the rise in childhood asthma in the developed world could at least partly result from the increasing exposure of children to toxic gases and aerosols contaminating the air of indoor chlorinated pools.
Attendance of indoor chlorinated pools especially by young children interacts with atopic status* to promote the development of childhood asthma. These findings further support the hypothesis implicating pool chlorine in the rise of childhood asthma in industrialized countries.
(*Atopy is a genetically determined state of hypersensitivity to environmental allergens. It is also called "inhalant allergy" and includes rhinitis, asthma, hay fever and eczema.)
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