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7 / 29 / 25, 10:20 AM Particulate matter concentrations in UK schools: A nationwide study into the influence of ambient PM2.5 and the resulting exposur …
Science of The Total Environment Volume 970, 20 March 2025, 178875
Particulate matter concentrations in UK schools: A nationwide study into the influence of ambient PM and the resulting exposure potentials
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Alice E. E. Handy, Samuel G. A. Wood, Katherine Roberts, Christopher S. Malley, Henry C. Burridge, The SAMHE Project Consortium
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https:// doi. org / 10.1016 / j. scitotenv. 2025.178875 Get rights and content
Highlights
• Concentrations of PM were monitored in 490 schools across the UK during the academic year 2023 – 2024.
• School PM concentrations closely correlated to ambient outdoor
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• Outdoor air is a key source of PM in the schools monitored, an upper bound for the contribution from indoor sources is estimated to be 25 %.
• Outdoor PM events— periods of elevated outdoor PM concentration— lead to high concentrations in schools.
• The potential exposure of PM received during these events is estimated to contribute significantly to the total received over the academic year.
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