An approach to assess the Particulate Matter exposure for the population living around a cement plant: modelling indoor air and particle deposition in the respiratory tract.
Environ Res
; 143(Pt A): 10-8, 2015 Nov.
Article
em En
| MEDLINE
| ID: mdl-26408807
ABSTRACT
In this paper we studied the exposure to three size fractions of outdoor particulate matter (PM10, PM2.5, and PM1) collected in an area influenced by a cement plant. For that purpose, three groups of population were evaluated (children, adults and retired) in two seasons (summer and winter). Outdoor measured PM concentrations, as well as physiological parameters and activity patterns of the three groups of population were used as input data in two different models. The first one was an indoor air quality model, used to elucidate indoor PM concentrations in different microenvironments. The second one was a dosimetry model, used to evaluate the internal exposure and the distribution of the different PM fractions in the respiratory tract. Results from the indoor air quality model showed that special attention must be paid to the finest particles, since they penetrate indoors in a greater degree. Highest pulmonary doses for the three PM sizes were reported for retired people, being this a result of the high amount of time in outdoor environments exercising lightly. For children, the exposure was mainly influenced by the time they also spend outdoors, but in this case due to heavy intensity activities. It was noticed that deposition of fine particles was more significant in the pulmonary regions of children and retired people in comparison with adults, which has implications in the expected adverse health effects for those vulnerable groups of population.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Sistema Respiratório
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Poluição do Ar em Ambientes Fechados
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Exposição por Inalação
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Poluentes Atmosféricos
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Material Particulado
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Modelos Biológicos
Limite:
Aged
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Child
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Humans
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Middle aged
País/Região como assunto:
Europa
Idioma:
En
Revista:
Environ Res
Ano de publicação:
2015
Tipo de documento:
Article
País de afiliação:
Espanha