Neurodevelopmental deceleration by urban fine particles from different emission sources: A longitudinal observational study
Journal article
Basagaña, Xavier, Esnaola, Mikel, Rivas, Ioar, Amato, Fulvio, Alvarez-Pedrerol, Mar, Forns, Joan, López-Vicente, Mònica, Pujol, Jesús, Nieuwenhuijsen, Mark J., Querol, Xavier and Sunyer, Jordi. (2016). Neurodevelopmental deceleration by urban fine particles from different emission sources: A longitudinal observational study. Environmental Health Perspectives. 124(10), pp. 1630 - 1636. https://doi.org/10.1289/EHP209
Authors | Basagaña, Xavier, Esnaola, Mikel, Rivas, Ioar, Amato, Fulvio, Alvarez-Pedrerol, Mar, Forns, Joan, López-Vicente, Mònica, Pujol, Jesús, Nieuwenhuijsen, Mark J., Querol, Xavier and Sunyer, Jordi |
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Abstract | Background: A few studies have reported associations between traffic-related air pollution exposure at schools and cognitive development. The role of PM components or sources other than traffic on cognitive development has been little explored. Objectives: We aimed to explore the role of PM sources in school air on cognitive development. Methods: A cohort of 2,618 schoolchildren (average age, 8.5 years) belonging to 39 schools in Barcelona (Spain) was followed up for a year. Children completed computerized tests assessing working memory, superior working memory, and inattentiveness during four visits. Particulate matter ≤ 2.5 μm (PM2.5) was measured during two 1-week campaigns in each school, both outdoors and in the classroom. Source apportionment resulted in nine sources: mineral, organic/textile/chalk, traffic, secondary sulfate and organics, secondary nitrate, road dust, metallurgy, sea spray, and heavy oil combustion. Differences in cognitive growth trajectories were assessed with mixed models with age-by-source interaction terms. Results: An interquartile range increase in indoor traffic-related PM2.5 was associated with reductions in cognitive growth equivalent to 22% (95% CI: 2%, 42%) of the annual change in working memory, 30% (95% CI: 6%, 54%) of the annual change in superior working memory, and 11% (95% CI: 0%, 22%) of the annual change in the inattentiveness scale. None of the other PM2.5 sources was associated with adverse effects on cognitive development. Conclusions: Traffic was the only source of fine particles associated with a reduction in cognitive development. Reducing air pollution from traffic at primary schools may result in beneficial effects on cognition. |
Year | 2016 |
Journal | Environmental Health Perspectives |
Journal citation | 124 (10), pp. 1630 - 1636 |
Publisher | National Institute of Environmental Health Sciences, U.S. Department of Health and Human Services |
ISSN | 0091-6765 |
Digital Object Identifier (DOI) | https://doi.org/10.1289/EHP209 |
Scopus EID | 2-s2.0-84989284011 |
Page range | 1630 - 1636 |
Research Group | Mary MacKillop Institute for Health Research |
Publisher's version | File Access Level Controlled |
Place of publication | United States of America |
https://acuresearchbank.acu.edu.au/item/867q1/neurodevelopmental-deceleration-by-urban-fine-particles-from-different-emission-sources-a-longitudinal-observational-study
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