Campo DC | Valor | Idioma |
dc.contributor.author | Marins, Rozane V. | - |
dc.contributor.author | Andrade, Jailson Bittencourt de | - |
dc.contributor.author | Pereira, Pedro Afonso de Paula | - |
dc.contributor.author | Paiva, Elizabeth C. | - |
dc.contributor.author | Paraquetti, Heloisa H. M. | - |
dc.creator | Marins, Rozane V. | - |
dc.creator | Andrade, Jailson Bittencourt de | - |
dc.creator | Pereira, Pedro Afonso de Paula | - |
dc.creator | Paiva, Elizabeth C. | - |
dc.creator | Paraquetti, Heloisa H. M. | - |
dc.date.accessioned | 2013-07-30T19:57:30Z | - |
dc.date.available | 2013-07-30T19:57:30Z | - |
dc.date.issued | 2000 | - |
dc.identifier.issn | 1464-0325 | - |
dc.identifier.uri | http://www.repositorio.ufba.br/ri/handle/ri/12362 | - |
dc.description | p. 325-328 | pt_BR |
dc.description.abstract | A system, based on annular gold-coated denuders, was optimized and used in the atmospheric sampling of
mercury in urban and rural sites of the Alta Floresta, a region in the Brazilian Amazon. Results showed that
vapour phase mercury (Hgv) is dominant in samples collected in both sites. However, particulate mercury (Hg)
may sometimes be signi®cant at the urban site, with values representing up to 77% of the total Hg collected
during sampling, but may also be insigni®cant at the same site, depending on the gold commercialization
activity and, probably, on the meteorological conditions during the sampling period. The presence of mercury
in both the vapour and particulate phases in the atmosphere of the urban site can explain the high mercury
concentrations found in urban dust reported for some cities in the Amazon, and also the relatively high Hg
concentrations found in soils adjacent to the urban centre of Alta Floresta. It appears that the urban dust of
``garimpo'' areas in the Amazon can act as an ef®cient adsorber of Hgv emitted by gold dealer operations
during the puri®cation process. Mercury emissions from gold dealer shops in the Amazon have been considered
as a human health risk through the inhalation of Hg vapour. However, although true for indoor sites, the
signi®cant contribution of particulate phase Hg shown in this study in outdoor urban sites calls for a reevaluation
of the risk assessment estimates performed up to now in urban centres in the Amazon. | pt_BR |
dc.language.iso | en | pt_BR |
dc.publisher | Journal of Environmental Monitoring | pt_BR |
dc.source | 10.1039/b000608o | pt_BR |
dc.title | Sampling techniques for the assessment of anthropogenic vapour and particulate mercury in the Brazilian Amazon atmosphere | pt_BR |
dc.title.alternative | Journal of Environmental Monitoring | pt_BR |
dc.type | Artigo de Periódico | pt_BR |
dc.description.localpub | Salvador | pt_BR |
Aparece nas coleções: | Artigo Publicado em Periódico (Química)
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