Use este identificador para citar ou linkar para este item: http://repositorio.ufc.br/handle/riufc/72005
Tipo: Artigo de Periódico
Título: Influence of the seasonality and of urban variables in the BTEX and PM2.5 atmospheric levels and risks to human health in a tropical coastal city (Fortaleza, CE, Brazil)
Autor(es): Santiago, Íthala S.
Silva, Tamiris F. A.
Marques, Elissandra V.
Barreto, Francisco M. de S.
Ferreira, Antonio Geraldo
Rocha, Camille A.
Mendonça, Kamila Vieira
Cavalcante, Rivelino Martins
Palavras-chave: Ambient air;Seasonal variation;Health risks;Ambiente - Ar;Variação de estações;Riscos de saude
Data do documento: 2011
Instituição/Editor/Publicador: Environmental Science and Pollution Research
Citação: SANTIAGO, Íthala S.; SILVA, Tamiris F. A.; MARQUES, & Elissandra V.; BARRETO, Francisco M. de S.; FERREIRA, Antonio Geraldo; ROCHA, Camille A.; MENDONÇA, Kamila Vieira; CAVALCANTE, Rivelino Martins. Influence of the seasonality and of urban variables in the BTEX and PM2.5 atmospheric levels and risks to human health in a tropical coastal city (Fortaleza, CE, Brazil). Environmental Science and Pollution Research, Germany, v.28, p.42670–42682, 2021. Disponível em: https://doi.org/10.1007/s11356-021-13590-6 /. Acesso em: 3 maio 2023.
Resumo: . .
Abstract: The International Agency for Research on Cancer (IARC) classifies benzene in group 1 (carcinogenic to humans). Particulate matter (PM) has recently also been classified in this category. This was an advance toward prioritizing the monitoring of particles in urban areas. The aim of the present study was to assess levels of PM2.5 and BTEX (benzene, toluene, ethylbenzene, and xylene), the influence of meteorological variables, the planetary boundary layer (PBL), and urban variables as well as risks to human health in the city of Fortaleza, Brazil, in the wet and dry periods. BTEX compounds were sampled using the 1501 method of NIOSH and determined by GC-HS-PID/FID. PM2.5 was monitored using an air sampling pump with a filter holder and determined by the gravimetric method. Average concentrations of BTEX ranged from 1.6 to 45.5 μg m−3 , with higher values in the wet period, which may be explained by the fact that annual distribution is influenced by meteorological variables and the PBL. PM2.5 levels ranged from 4.12 to 33.0 μg m−3 and 4.18 to 86.58 μg m−3 in the dry and wet periods, respectively. No seasonal pattern was found for PM2.5, probably due to the influence of meteorological variables, the PBL, and urban variables. Cancer risk ranged from 2.46E−04 to 4.71E−03 and 1.72E−04 to 2.01E−03 for benzene and from 3.07E−06 to 7.04E−05 and 3.08E−06 to 2.85E−05 for PM2.5 in the wet and dry periods, respectively. Cancer risk values for benzene were above the acceptable limit established by the international regulatory agency in both the dry and wet periods. The results obtained of the noncarcinogenic risks for the compounds toluene, ethylbenzene, and xylene were within the limit
URI: http://www.repositorio.ufc.br/handle/riufc/72005
ISSN: 1614-7499
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