Data/hora: 03/06/2024 11:51:39

Biblioteca(s): | Embrapa Pantanal.
Data corrente: | 01/10/1998
Data da última atualização: | 28/03/2017
Autoria: | BARBOSA, A. C.; GARCIA, A. M.; SOUZA, J. R. de.
Título: | Mercury contamination in hair of riverine populations of Apiacas Reserve in the Brazilian.
Ano de publicação: | 1997
Fonte/Imprenta: | Water, Air & Soil Pollution, v.97, n.1/2, p.1-8, 1997.
Idioma: | Inglês
Conteúdo: | Total and inorganic Hg in 55 samples of hair from riverines mainly descendents from Munkuruku and Apiaka Indians living along the rivers Teles Pires and Juruena have been determined. The sampled population represents 18% of the inhabitants of the region and they eat fish 6 or 7 days a week. Cold-vapor AAS and alkaline digestion with CdCl2/SnCl2 as reducing agent were employed to estimate total Hg in hair samples. A LDC Analytical, Mod. 1255, Mercury monitor was used for Hg determination. The mean value of total Hg was 34.2ugg-1, with an average of 87.2% of organic Hg Ninety-three per cent of the sampled population present levels of Hg above 10ug-1, and 18% over 50ugg-1. A relationship between the mean value of Hg and age of the sampled populations is presented. All women at child-bearing age present concentrations of Hg above 10ugg-1. Fifty-four per cent o them had levels over 30ugg-1, with a mean of 41.2ugg-1. For the children under ten years of age, 14% ahow Hg concentration above 50ugg-1. Comparison of these results with those obtained in 10 other Amazon surveys (n 1672) is shown. The result of the concentration of mercury in fish, mainly piscicorous (n=967) from Amazonian and Wetland (pantanal matogrossense) are also presented with a mean of 726 ng mh-1. There appears to be a relationship between level of Hg in human and their food ingestion habits.
Palavras-Chave: | Amazon; Apiacas Reserve; Cabelo de populacao ribeirinha; Hair of riverine populations; Reserva Apiacas.
Thesagro: | Mercúrio.
Thesaurus Nal: | Amazonia; Brazil; mercury.
Categoria do assunto: | --
Registro original: | Embrapa Pantanal (CPAP)
Exemplares: | CPAP - (36117-1) - ADD - SP - PP - SP15680 -  - 15680 - DIS