Occurrence of contaminants of emerging concern and their risks to the Pantanal Sul-Mato-Grossense aquatic biota, Brazil

Viana, Lucilene Finoto; Crispim, Bruno do Amaral; Kummrow, Fábio; Lima, Nathalya Alice de; Dias, Mariana Amaral; Montagner, Cassiana Carolina; Pereira, Ricardo Henrique Gentil; Barros, Adriana de; Barufatti, Alexéia

doi:10.1016/j.chemosphere.2023.139429

Cited by 5 publications

(1 citation statement)

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“…Pantanal is considered a priority area for worldwide conservation of natural resources by UNESCO (United Nations Educational, Scientific and Cultural Organization). However, despite its importance to the conservation of biodiversity, fisheries, and water resources, Pantanal is currently under serious threat of environmental disturbance by the input of contaminants generated by anthropic activities developed in the surroundings of the wetlands (plateau regions and mountain ranges), which include the use of pesticides in agriculture, mining, industries, and the increasing urbanization (Alho and Vieira 1997;Vieira et al 2011;Viana et al 2023), besides petroleum derivatives contamination due to vessels navigation, mainly by boats of fishermen.…”

Section: Introductionmentioning

confidence: 99%

Essential and non-essential elements levels in fish species highly consumed in the middle Miranda River, Brazilian Pantanal

Quintela,

Silva,

Correa

et al. 2023

Preprint

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The Miranda River basin spreads over about 40.000 km² and consists of one of the central systems acting in the Pantanal flooding regime in the upper Paraguay River basin. The middle Miranda River has great socioeconomic importance as a source of fishery resources highly exploited by riverine communities, in addition to sustaining very significant fishing tourism in southern Pantanal. The present study investigated the levels of As, Ag, Al, Ba, Cd, Cr, Cu, Fe, Hg, Mn, Pb, Se, and Zn in muscle samples of six fish species (Pygocentrus nattereri, Serrasalmus marginatus, Mylossoma duriventre, Leporinus friderici, Pimelodus argenteus, and P. pantaneiro) highly consumed by local riverine and non-resident people in a highly exploited stretch of middle Miranda River. Interspecific significant differences were detected for Ba, Fe, Mn, and Zn levels. However, these seem unrelated to species' feeding habits once pairwise comparison detected significant differences in element levels between species with similar diets. Significant correlations between body size and concentrations were found for Ba in P. nattereri (moderate positive correlation), and for Mn in M. duriventre (weak positive correlation) and P. argenteus (moderate negative correlation). Levels exceeding tolerable daily intake (TDI) were found for Pb maximum concentrations in P. nattereri, M. duriventre, L. friderici, P. argenteus, and P. pantaneiro, and for Cd maximum concentration in P. argenteus. Adopting a Pb monitoring program in biotic and abiotic compartments in Miranda River is strongly recommended.

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Section: Introductionmentioning

confidence: 99%