Portal de Periódicos da CAPES

Artigo Acesso aberto Produção Nacional Revisado por pares

BIBTEX RIS

Mercury exposure of children living in Amazonian villages: influence of geographical location where they lived during prenatal and postnatal development

2019; Brazilian Academy of Sciences; Volume: 91; Issue: suppl 1 Linguagem: Inglês

10.1590/0001-3765201920180097

1678-2690

JOYCE S. FREITAS, Eliza Maria da Costa Brito Lacerda, Dario Rodrigues Júnior, Tereza Cristina de Oliveira Corvelo, Luiz Carlos L. Silveira, Maria da Conceição Nascimento Pinheiro, Givago da Silva Souza,

Child Nutrition and Water Access

In some Amazonian river basins, hair mercury concentration is above the recommended levels. We evaluated the influence of birth geographical location in the hair mercury level of Amazonian riverine children.Hair mercury concentration was measured in 219 children living in four Amazonian riverine communities: Tapajós River (São Luiz do Tapajós and Barreiras villages, n = 110), Tocantins River (Limoeiro do Ajurú village, n = 61), and Caeté River (Caratateua village, n = 48). We used Poisson regression analysis to evaluate the association between native and non-native children from each village and its hair mercury concentration.Higher mercury exposure was found in native children from São Luiz do Tapajós (range = 0.81-22.38 µg/g) followed by native children from Barreiras (range = 0.48-13.46 µg/g), non-native children from São Luiz do Tapajós (range = 0.26-22.18 µg/g), non-native children from Barreiras (range = 0.43-20.76 µg/g), followed by the children from Caeté and Tocantins river basins. We observed that Tapajós villages' native children had higher prevalence of mercury exposure children than other children (p < 0.05).Birth geographical location has association to mercury levels in the hair of children who lived in a same community with history of mercury exposure.