Health Assessment of Mercury Exposure in a Riparian Community in the Madeira River
1 Departamento de Quimica, Universidade Pontificia Catolica do Rio de Janeiro, Rua Marquês São Vicente, 225, Gávea Rio de Janeiro - RJ, 22451-041.
2 Escola Nacional De Saude Publica, Fundação Oswaldo Cruz, Rua Leopoldo Bulhões, 1480 .Manguinhos, Rio de Janeiro - RJ, 21041-210
Mercury concentrations were analyzed in a riparian community from the Cuniã Lake RESEX (a riparian extrativist reserve) at the Madeira river, located in the Amazon region. The studied population age ranged from 2 to 90 years old and hair was used as biomarker. A total of 252 hair samples were collected from fishermen families. Hg concentrations averaged 6.0 (IC95% 5.58-6.58) ± 3.9 μg.g-1 (SD). The fish consumption for adults in this community ranges from 40 to 600 grams per day. The results showed significant gender differences for Hg levels (p-value < 0.05); for male individuals the average was 7.4 (IC 95% 5.56-8.28)±4,5 μg.g-1 and for female individuals was of 5.0 (IC 95% 4.49-5.54) ±3.3 μg.g-1. Studies on neurological symptoms and diet of this community are under way along with other clinical trials and biochemical measurements.
Key words: Mercury / fish / hair-Hg / riparian / Amazon
© Owned by the authors, published by EDP Sciences, 2014
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