Atmospheric mercury in forests: accumulation analysis in a gold mining area in the southern Amazon, Brazil

Casagrande, Gabriela Cristina Rabello; Dambros, Juliane; Andrade, Ednaldo Antônio de; Martello, Felipe; Sobral‐Souza, Thadeu; Moreno, Maria Inês Cruzeiro; Battirola, Leandro Dênis; Andrade, Ricardo Lopes Tortorela de

doi:10.1007/s10661-023-11063-6

Cited by 5 publications

(1 citation statement)

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“…The well-studied tropical forest of the Amazon, which is an important terrestrial sink, mitigating the release of Hg into the atmosphere, could have its ability reduced by anthropogenically induced forest degradation [ 158 ].…”

Section: Discussionmentioning

confidence: 99%

Trends in Mercury Contamination Distribution among Human and Animal Populations in the Amazon Region

Martoredjo,

Calvão Santos,

Vilhena

et al. 2024

Toxics

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Mercury contamination in the Amazon arising from both natural sources and intensive mining activities in the region is a significant public health concern. This metal is used to separate Au from sediments. Accordingly, this study aimed to assess the impact of mining on mercury contamination in the animal and human populations of the Amazon. This overall objective was pursued through a systematic review of the existing literature to assess the impact of Hg and identify gaps in geographic coverage arising from this assessment. Herein, we employed PECO and PRISMA-ScR protocols to select articles published between 2017 and 2023 based on projected points on a map within the biogeographic boundaries of the Amazon. We found that mercury concentrations increase with trophic levels, reaching high values of 3.7 µg/g in the muscles of predatory fish and 34.9 µg/g in human hair. The mean level of mercury in human hair in the whole (Amazon) region exceeds 6 µg/g, surpassing tolerance levels. Although mining regions show high concentrations of Hg, the highest incidence was observed among populations with fish-based diets. It was concluded that continuous research and monitoring of fish in the region are required in order to accurately assess the risk associated with Hg contamination, especially since fish are the main source of protein in this region.

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Section: Discussionmentioning

confidence: 99%