Childhood Air Pollution Directly Linked To Adult Lung Health, Study Says

Air pollution breathed in during childhood is one of the factors in adult lung health, according to a new study. From a report: The origins of the study date back to 1992 when researchers began investigating the effects of air pollution on groups of children in California. Some of these children are now in their 40s. Dr Erika Garcia and colleagues from the University of Southern California decided to see how they were getting on. More than 1,300 people replied and filled in detailed questionnaires on their income, lifestyle (including smoking), homes and health. This was matched against their childhood health and the local air pollution when they were growing up. The first finding was that people with higher childhood exposures to particle pollution and nitrogen dioxide had a higher likelihood of bronchitic symptoms as an adult. This relationship was strongest for those who had developed asthma and lung problems as children, meaning these people had a vulnerability that continued into adulthood. The second finding was unexpected: a relationship existed between childhood air pollution and adult bronchitic symptoms for people who did not have lung problems as children. This suggests the damage from air pollution in childhood may only manifest in adult life. Garcia said: "This was surprising. We thought air pollutant effects on childhood asthma or bronchitic symptoms would be a major pathway by which childhood air pollution exposure affects adult respiratory health."

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