Study: In-Home Particulate Matter Pollution and Childhood Asthma

In a study published in the February edition of the journal Environmental Health Perspectives, researchers investigated the effect of in-home particulate matter (PM) on children with asthma. For a cohort of 150 asthmatic children (2-6 years of age) from Baltimore, Maryland, a technician deployed environmental monitoring equipment in the home for 3-day intervals at baseline and at 3 and 6 months. Caregivers also completed questionnaire and daily diaries during air sampling. Children were primarily African American from lower socioeconomic backgrounds and spent most of their time in the home. The authors concluded that among the cohort of asthmatic children, increases in in-home PM 2.5-10 and PM 2.5 were associated with respiratory symptoms and rescue medication use. Increases in in-home and ambient PM 2.5 were associated with exercise-related symptoms. Reducing PM indoors, especially in homes of inner-city children, may lead to improved asthma health.

To view this study, visit //www.ehponline.org/members/2008/11770/11770.pdf.

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