期刊
ENVIRONMENTAL POLLUTION
卷 208, 期 -, 页码 382-394出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2015.10.004
关键词
Indoor air; Preschools; Polycyclic aromatic hydrocarbons (PAHs); Indoor/outdoor (I/O); Health risks
资金
- European Union (FEDER funds through COMPETE)
- FCT [UID/QUI/50006/2013, UID/EQU/00511/2013-LEPABE, SFRH/BD/80113/2011, SFRH/BPD/65722/2009]
- FCT/MEC
- FEDER
This work characterizes levels of polycyclic aromatic hydrocarbons (PAHs) in indoor and outdoor air of preschool environments, and assesses the respective risks for 3-5-years old children. Eighteen gaseous and particulate (PM1 and PM2.5) PAHs were collected indoors and outdoors during 63 days at preschools in Portugal. Gaseous PAHs accounted for 94-98% of total concentration (Sigma(PAHS)). PAHs with 5-6 rings were predominantly found in PM1 (54-74% particulate Ip pus). Lighter PAHs originated mainly from indoor sources whereas congeners with 4-6 rings resulted mostly from outdoor emissions penetration (motor vehicle, fuel burning). Total cancer risks of children were negligible according to USEPA, but exceeded (8-13 times) WHO health-based guideline. Carcinogenic risks due to indoor exposure were higher than for outdoors (4-18 times). (C) 2015 Elsevier Ltd. All rights reserved.
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