Spatiotemporally resolved black carbon concentration, schoolchildren's exposure and dose in Barcelona
Rivas Lara, Ioar (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals)
Donaire González, D. (Universitat Pompeu Fabra)
Bouso Castillo, Laura (Universitat Pompeu Fabra)
Esnaola, M. (Universitat Pompeu Fabra)
Pandolfi, M. (Institut de Diagnòstic Ambiental i Estudis de l'Aigua)
De Castro, M. (Universitat Pompeu Fabra)
Viana, M. (Institut de Diagnòstic Ambiental i Estudis de l'Aigua)
Álvarez Pedrerol, Mar (Universitat Pompeu Fabra)
Nieuwenhuijsen, M. (Universitat Pompeu Fabra)
Alastuey, Andrés (Institut de Diagnòstic Ambiental i Estudis de l'Aigua)
Sunyer Deu, Jordi (Institut Hospital del Mar d'Investigacions Mèdiques)
Querol, X. (Institut de Diagnòstic Ambiental i Estudis de l'Aigua)

Fecha:	2016
Resumen:	At city level, personal monitoring is the best way to assess people's exposure. However, it is usually estimated from a few monitoring stations. Our aim was to determine the exposure to black carbon (BC) and BC dose for 45 schoolchildren with portable microaethalometers and to evaluate the relationship between personal monitoring and fixed stations at schools (indoor and outdoor) and in an urban background (UB) site. Personal BC concentra-tions were 20% higher than in fixed stations at schools. Linear mixed-effect models showed low R2 between personal measurements and fixed stations at schools (R2 ≤ 0. 28), increasing to R2 ≥ 0. 70 if considering only periods when children were at schools. For the UB station, the respective R2 were 0. 18 and 0. 45, indicating the importance of the distance to the monitoring station when assessing exposure. During the warm season, the fixed stations agreed better with personal measurements than during the cold one. Children spent 6% of their time on commuting but received 20% of their daily BC dose, due to co-occurrence with road traffic rush hours and the close proximity to the source. Children received 37% of their daily-integrated BC dose at school. Indoor environments (classroom and home) were responsible for the 56% BC dose.
Ayudas:	European Commission 268479 Agència de Gestió d'Ajuts Universitaris i de Recerca 2015/SGR-33
Nota:	Unidad de excelencia María de Maeztu MdM-2015-0552
Derechos:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió publicada
Materia:	Personal monitoring ; Indoor environment ; Dose ; Time-activity pattern ; Commuting ; Equivalent black carbon
Publicado en:	Indoor air, Vol. 26, issue 3 (June 2016) , p. 391-402, ISSN 0905-6947

DOI: 10.1111/ina.12214
PMID: 25924870

12 p, 1.3 MB

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