Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/2461
Título: Impact of Sahara dust transport on Cape Verde atmospheric element particles
Autor: Almeida-Silva, Marina
Almeida, Susana Marta
Freitas, M. C.
Pio, C. A.
Nunes, T.
Cardoso, J.
Palavras-chave: Environmental health
Dust transport
Airborne particles
Particulate matter
Cap Verde
Data: Mar-2013
Editora: Taylor & Francis
Citação: Almeida-Silva M, Almeida SM, Freitas MC, Pio CA, Nunes T, Cardoso J. Impact of Sahara dust transport on Cape Verde atmospheric element particles. J Toxicol Environ Health A. 2013;76(4-5):240-51.
Resumo: The objectives of this study were to (1) conduct an elemental characterization of airborne particles sampled in Cape Verde and (2) assess the influence of Sahara desert on local suspended particles. Particulate matter (PM10) was collected in Praia city (14°94'N; 23°49'W) with a low-volume sampler in order to characterize its chemical composition by k0-INAA. The filter samples were first weighed and subsequently irradiated at the Portuguese Research Reactor. Results showed that PM10 concentrations in Cape Verde markedly exceeded the health-based air quality standards defined by the European Union (EU), World Health Organization (WHO), and U.S. Environmental Protection Agency (EPA), in part due to the influence of Sahara dust transport. The PM10 composition was characterized essentially by high concentrations of elements originating from the soil (K, Sm, Co, Fe, Sc, Rb, Cr, Ce, and Ba) and sea (Na), and low concentrations of anthropogenic elements (As, Zn, and Sb). In addition, the high concentrations of PM measured in Cape Verde suggest that health of the population may be less affected compared with other sites where PM10 concentrations are lower but more enriched with toxic elements.
Peer review: yes
URI: http://hdl.handle.net/10400.21/2461
ISSN: 0098-4108
Versão do Editor: http://www.tandfonline.com/doi/abs/10.1080/15287394.2013.757200?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub%3dpubmed
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