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From Past Use to Present Effects: Total Mercury in Crustaceans and Fish in the Inner Estuary of Paraíba do Sul River, Southeast Brazil
Bulletin of Environmental Contamination and Toxicology ( IF 2.7 ) Pub Date : 2021-03-11 , DOI: 10.1007/s00128-021-03167-x
Ana Paula Madeira Di Beneditto 1 , Helena do Amaral Kehrig 1 , Inácio Abreu Pestana 1
Affiliation  

Total mercury (Hg) concentration and stable isotope ratios (δ13C and δ15N) were used as chemical tracers in two crustaceans and four fish species that are targets of subsistence fishery in the inner estuary of the Paraíba do Sul River. This fluvial environment in southeast Brazil has a large historical utilization of Hg. δ15N was a better predictor of Hg concentration in the muscle (edible part) than δ13C; i.e., the Hg concentration was more closely related to the trophic position of species than species’ trophic habitat. Consumers at higher trophic levels had higher Hg concentrations. The Hg concentration was below the maximum permissible limits established by the Brazilian Government in fishery products, and there are no human risks related to its consumption.



中文翻译:

从过去的使用到现在的影响:巴西东南部南帕拉伊巴河内河口甲壳类动物和鱼类的总汞含量

总汞 (Hg) 浓度和稳定同位素比率(δ 13 C 和 δ 15 N)被用作两种甲壳类动物和四种鱼类的化学示踪剂,它们是南帕拉伊巴河内河口的自给渔业目标。巴西东南部的河流环境对汞的历史利用量很大。δ 15 N 比δ 13更能预测肌肉(可食用部分)中的汞浓度C; 即,汞浓度与物种的营养位置的关系比物种的营养栖息地更密切。处于较高营养水平的消费者具有较高的汞浓度。汞浓度低于巴西政府在渔业产品中规定的最大允许限度,并且不存在与其消费相关的人类风险。

更新日期:2021-03-11
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