INTRODUCTION: 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. MATERIALS AND METHODS: 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. RESULTS: 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). CONCLUSIONS: Birth geographical location has association to mercury levels in the hair of children who lived in a same community with history of mercury exposure.
INTRODUCTION: 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. MATERIALS AND METHODS: 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. RESULTS: 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). CONCLUSIONS: Birth geographical location has association to mercury levels in the hair of children who lived in a same community with history of mercury exposure.
Authors: Leonardo Barcellos de Bakker; Pedro Gasparinetti; Júlia Mello de Queiroz; Ana Claudia Santiago de Vasconcellos Journal: Int J Environ Res Public Health Date: 2021-11-12 Impact factor: 3.390
Authors: Paulo Cesar Basta; Paulo Victor de Sousa Viana; Ana Claudia Santiago de Vasconcellos; André Reynaldo Santos Périssé; Cristina Barroso Hofer; Natalia Santana Paiva; Joseph William Kempton; Daniel Ciampi de Andrade; Rogério Adas Ayres de Oliveira; Rafaela Waddington Achatz; Jamila Alessandra Perini; Heloísa do Nascimento de Moura Meneses; Gustavo Hallwass; Marcelo de Oliveira Lima; Iracina Maura de Jesus; Cleidiane Carvalho Ribeiro Dos Santos; Sandra de Souza Hacon Journal: Int J Environ Res Public Health Date: 2021-09-01 Impact factor: 3.390
Authors: Heloisa do Nascimento de Moura Meneses; Marcelo Oliveira-da-Costa; Paulo Cesar Basta; Cristiano Gonçalves Morais; Romulo Jorge Batista Pereira; Suelen Maria Santos de Souza; Sandra de Souza Hacon Journal: Int J Environ Res Public Health Date: 2022-02-28 Impact factor: 3.390