Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.22/7242
Título: Polycyclic aromatic hydrocarbons: levels and phase distributions in preschool microenvironment
Autor: Oliveira, M.
Slezakova, K.
Delerue-Matos, C.
Pereira, M. C.
Morais, S.
Palavras-chave: Indoor air
Preschools
Polycyclic aromatic hydrocarbons
Indoor/outdoor
Children
Data: Out-2015
Editora: Wiley
Relatório da Série N.º: Indoor Air;Vol. 25, Issue 5
Resumo: This work aims to characterize levels and phase distribution of polycyclic aromatic hydrocarbons (PAHs) in indoor air of preschool environment and to assess the impact of outdoor PAH emissions to indoor environment. Gaseous and particulate (PM1 and PM2.5) PAHs (16 USEPA priority pollutants, plus dibenzo[a,l]pyrene, and benzo[j]fluoranthene) were concurrently sampled indoors and outdoors in one urban preschool located in north of Portugal for 35 days. The total concentration of 18 PAHs (ΣPAHs) in indoor air ranged from 19.5 to 82.0 ng/m3; gaseous compounds (range of 14.1–66.1 ng/m3) accounted for 85% ΣPAHs. Particulate PAHs (range 0.7–15.9 ng/m3) were predominantly associated with PM1 (76% particulate ΣPAHs) with 5-ring PAHs being the most abundant. Mean indoor/outdoor ratios (I/O) of individual PAHs indicated that outdoor emissions significantly contributed to PAH indoors; emissions from motor vehicles and fuel burning were the major sources.
URI: http://hdl.handle.net/10400.22/7242
DOI: 10.1111/ina.12164
Versão do Editor: http://onlinelibrary.wiley.com/doi/10.1111/ina.12164/full
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