Artigos Científicos - NMT

URI Permanente para esta coleçãohttps://repositorio.ufpa.br/handle/2011/2212

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A ingestão de pescado e as concentrações de mercúrio em famílias de pescadores de Imperatriz (MA)
(Universidade Federal do Pará, 2016-03) MILHOMEM FILHO, Edem Oliveira; OLIVEIRA, Claudia Simone Baltazar de; SILVEIRA, Luiz Carlos de Lima; CRUZ, Thiago Matos; SOUZA, Givago da Silva; COSTA JÚNIOR, José Maria Farah; PINHEIRO, Maria da Conceição Nascimento
Introduction: Significant levels of mercury exposure associated with fish intake have been demonstrated in riverine populations living in areas of mineral exploration as the basin of Tapajós and Madeira. In the Tocantins region, although few studies, there is no evidence of human exposure through food. Objective: To assess the levels of exposure to mercury in resident fishermen families in the riverside area of the middle Tocantins and to quantify the levels in fish consumed by these families. Methods: We conducted a cross‑sectional study involving families of Beira Rio community fishermen, located on the Tocantins riverbanks in the city of Imperatriz, Maranhão. Brazil. Data were collected from socio‑demographic and food profile, as well as samples of fish and hair, which were analyzed by atomic absorption spectrophotometry. Results: The socio‑demographic profile of families studied was common to the local population located in other basins. The food profile did not run the default rule, with the fish being the primary dietary protein source. The species of piscivorous and zooplancton habits had the highest mercury concentrations, and the mean values were 0.2775 µg/g in fish‑dog and 0.1360 µg/g in mapará. Among the 25 families evaluated, the lowest average concentration of family was 0.186 ± 0.043 µg/g and the higher was 5.477 ± 2.896 µg/g. Conclusion: Fishing families have low mercury exposure levels in the same order of magnitude, probably because of the food consumption of fish, including piscivorous species, which were found to be below the safe upper limit for human consumption established by Brazilian standards. This serves as a reference for other studies.
Acesso aberto (Open Access)
Manifestações emocionais e motoras de ribeirinhos expostos ao mercúrio na Amazônia
(Universidade Federal do Pará, 2017-06) COSTA JÚNIOR, José Maria Farah; LIMA, Abner Ariel da Silva; RODRIGUES JÚNIOR, Dario; KHOURY, Eliana Dirce Torres Khoury; SOUZA, Givago da Silva; SILVEIRA, Luiz Carlos de Lima
Introduction: The investigation of clinical and neurological impactations associated with exposure to mercury levels in exposed populations is necessary in the Amazon. Objective: To analyze emotional and motor symptoms of riverside dwellers exposed by diet in the municipalities of Itaituba and Acará, in Pará, Brazil. Methods: Hair samples were collected to assess the total mercury (HgT). Demographic data as well as emotional (depression, anxiety and insomnia) and motor (paresthesia, muscle weakness, loss of balance when walking, tremors, limb pain and dysarthria) symptomatology data were obtained. Results: Mean levels of HgT in Itaituba were significantly higher (p < 0.0001) than in Acará. Emotional symptoms were identified in 26 (26.5%) participants from Itaituba and in 24 (52.2%) from Acará. Specific motor complaints in Itaituba occurred in 63 (64.3%) volunteers; the most frequently mentioned afflictions were limb pain (36.7%), paresthesia (32.6%) and muscle weakness (27.5%). In Acará, 33 (71.7%) participants had motor symptoms, the majority of which complained of paresthesia (54.3%), limb pain (52.2%) and tremors (34.8%). Average HgT levels in Itaituba in those with emotional and motor symptoms were above the tolerable levels (6 μg/g) determined by the World Health Organization. Conclusion: Results showed that mercury levels in emotional and motor symptoms in Itaituba are higher than in riverside dwellers in Acará. Further studies, including the application of specific qualitative and/or quantitative standard tests, as well as the investigation of other clinical signs are necessary.

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Navegando Artigos Científicos - NMT por Periódicos "Revista Brasileira de Epidemiologia"