Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/1905
Título: On the assessment of exposure to airborne ultrafine particles in urban environments
Autor: Gomes, João Pereira
Bordado, João Moura
Albuquerque, Paula Cristina
Palavras-chave: Saúde ambiental
Poluição do ar
Tráfego rodoviário
Environmental health
Air pollution
Automobile traffic
Data: Out-2012
Editora: Taylor & Francis
Citação: Gomes JP, Bordado JM, Albuquerque PC. On the assessment of exposure to airborne ultrafine particles in urban environments. J Toxicol Environ Health A. 2012;75(22-23):1316–29.
Resumo: The aim of this study was to contribute to the assessment of exposure levels of ultrafine particles in the urban environment of Lisbon, Portugal, due to automobile traffic, by monitoring lung deposited alveolar surface area (resulting from exposure to ultrafine particles) in a major avenue leading to the town center during late spring, as well as in indoor buildings facing it. Data revealed differentiated patterns for week days and weekends, consistent with PM2.5 and PM10 patterns currently monitored by air quality stations in Lisbon. The observed ultrafine particulate levels may be directly correlated with fluxes in automobile traffic. During a typical week, amounts of ultrafine particles per alveolar deposited surface area varied between 35 and 89.2 μm2/cm3, which are comparable with levels reported for other towns in Germany and the United States. The measured values allowed for determination of the number of ultrafine particles per cubic centimeter, which are comparable to levels reported for Madrid and Brisbane. In what concerns outdoor/indoor levels, we observed higher levels (32 to 63%) outdoors, which is somewhat lower than levels observed in houses in Ontario.
Peer review: yes
URI: http://hdl.handle.net/10400.21/1905
ISSN: 1528-7394
Versão do Editor: http://www.tandfonline.com/doi/abs/10.1080/15287394.2012.721163?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub%3dpubmed
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