The accumulation of toxic metals varied among grass carp (Ctenopharyngodon idella) tissues. Results showed that metal accumulation in the gills, liver and kidney was higher than in muscle, except for mercury.
The concentration of Hg and Cr in muscle, edible tissue, exceeded slightly the maximum permissible limit established by the FAO/WHO and the Mexican Legislation and could pose a health risk to consumers of grass carp from Tepuxtepec Dam.
Higher accumulation of metals in the gills, liver and kidney may be considered a primary signal of metal exposure and can be affect the aquatic life of the fresh water fish.
Heavy metals accumulate mainly in metabolic organs, such as liver and kidney and can be provokes damage in the grass carp (Ctenopharyngodon idella) metabolism.
Most of the data concentrations in the fish tissues of the sampling regions 3, 1 and 2 were higher than concentrations in the other four sampling regions due to the contribution of the Lerma River.
TXRF was used to measure a toxic metal in fish tissues, which had the ability to accumulate them and therefore could be used as a tool for future monitoring programs, to evaluate the metal pollution of the Tepuxtepec
Dam.
The accumulation of toxic metals varied among grass carp (Ctenopharyngodon idella) tissues. Results showed that metal accumulation in the gills, liver and kidney was higher than in muscle, except for mercury.
The concentration of Hg and Cr in muscle, edible tissue, exceeded slightly the maximum permissible limit established by the FAO/WHO and the Mexican Legislation and could pose a health risk to consumers of grass carp from Tepuxtepec Dam.
Higher accumulation of metals in the gills, liver and kidney may be considered a primary signal of metal exposure and can be affect the aquatic life of the fresh water fish.
Heavy metals accumulate mainly in metabolic organs, such as liver and kidney and can be provokes damage in the grass carp (Ctenopharyngodon idella) metabolism.
Most of the data concentrations in the fish tissues of the sampling regions 3, 1 and 2 were higher than concentrations in the other four sampling regions due to the contribution of the Lerma River.
TXRF was used to measure a toxic metal in fish tissues, which had the ability to accumulate them and therefore could be used as a tool for future monitoring programs, to evaluate the metal pollution of the Tepuxtepec
Dam.
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