From Past Use to Present Effects: Total Mercury in Crustaceans and Fish in the Inner Estuary of Paraiba do Sul River, Southeast Brazil

被引：4
|
作者：
Di Beneditto, Ana Paula Madeira [1 ]
Kehrig, Helena do Amaral [1 ]
Pestana, Inacio Abreu [1 ]
机构：
[1] Univ Estadual Norte Fluminense, CBB, Lab Ciencias Ambientais, Av Alberto Lamego 2000,Parque California, BR-28013602 Campos Dos Goytacazes, RJ, Brazil
来源：
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY | 2021年 / 107卷 / 01期
关键词：
Mercury; Stable isotopes; Fishery products; Inner estuary; RIO-DE-JANEIRO; TROPHIC POSITION; ISOTOPE RATIOS; LIFE-HISTORY; BIOMAGNIFICATION; DELTA-N-15; DELTA-C-13; NITROGEN; COMMUNITY; SEDIMENTS;
D O I：
10.1007/s00128-021-03167-x
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Total mercury (Hg) concentration and stable isotope ratios (delta C-13 and delta N-15) were used as chemical tracers in two crustaceans and four fish species that are targets of subsistence fishery in the inner estuary of the Paraiba do Sul River. This fluvial environment in southeast Brazil has a large historical utilization of Hg. delta N-15 was a better predictor of Hg concentration in the muscle (edible part) than delta C-13; 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.
引用
收藏
页码：124 / 130
页数：7
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