Children's exposure to indoor air in schools: Impact on wheezing

• Type: Article in International Scientific Journal
• Date: 2019

Authors

Juliana P. Sá (Author) FEUP; Pedro T. B. S. Branco (Author) FEUP; Conceição Alvim Ferraz (Author) FEUP; Fernando G. Martins (Author) FEUP; Sofia I. V. Sousa (Author) FEUP

Journal

Title: WIT Transactions on Ecology and the Environment

Vol. 236

Pages: 205-212

ISSN: 1743-3541

Publisher: WIT Press

Indexing

Scopus - 0 Citations

Associated Projects

INAIRCHILD - Poluição do Ar Interior em infantários e escolas primárias: Impacte na Asma Infantil

SENSINAIR - Sensores de baixo custo como ferramenta para redução da poluição do ar em infantários e escolas primárias – impacto na asma infantil

LEPABE - Projeto Estratégico do LEPABE - Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia

Other information

Authenticus ID: P-00R-2A8

DOI: 10.2495/AIR190201

Abstract (EN): Wheezing is a common symptom in childhood and has been associated with air pollution. Children spend a large part of their time in school, this being the most important indoor environment apart from home. However, studies on the impact of children's indoor air pollution exposure at schools on respiratory health are scarce. Thus, this study aimed to assess the impact of children's exposure to indoor air pollution in a total of five urban nursery and primary schools on active wheezing. Multivariate logistic regression models were used to estimate the associations, adjusted for sex, age group (pre-school/primary school) and parental history of asthma. A microenvironmental modelling approach was used to estimate indoor air pollution exposure to each of the pollutants exceeding legislation limit values (CO2, formaldehyde and PM2.5), as the sum of the product of time spent by the child in different indoor school microenvironments and the time-averaged concentration measured in each microenvironment. Measurements were performed in 11 classrooms, two bedrooms and two canteens in Porto, Portugal. A total of 164 completed parent-reported questionnaires derived from the International Study of Asthma and Allergies in Childhood allowed to identify active wheezing (at least one wheeze episode in the previous 12 months) in 16.5% of the studied children. Although not statistically significant, the studied children's exposure to indoor air pollution in nursery and primary schools seemed to be associated with an increase in the odds of having active wheezing especially for PM2.5 (OR = 1.57, p-value = 0.675). These results highlight the importance of applying indoor air pollution mitigation measures in nursery and primary schools. The impacts of those measures, on both indoor air quality and children's respiratory health, should be evaluated in future studies. © 2019 WIT Press

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8