Mercury concentrations in Baja California Sur fish: Dietary exposure assessment
| Autor: | Pablo Hernández-Almaraz, Andrew Cyr, John R. Harley, Todd M. O’Hara, Ramón Gaxiola-Robles, Felipe Galván-Magaña, Daniela Alejandra Murillo-Cisneros, Tania Zenteno-Savín |
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| Rok vydání: | 2020 |
| Předmět: |
Environmental Engineering
Health Toxicology and Mutagenesis 0208 environmental biotechnology chemistry.chemical_element 02 engineering and technology 010501 environmental sciences Biology 01 natural sciences Article Dietary Exposure Animal science Predatory fish Environmental Chemistry Animals Mexico 0105 earth and related environmental sciences Trophic level Dietary exposure Public Health Environmental and Occupational Health Fishes General Medicine General Chemistry Mercury Pollution Hazard quotient 020801 environmental engineering Mercury (element) chemistry Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | Chemosphere |
| ISSN: | 1879-1298 |
| Popis: | Total mercury concentrations ([THg]) in muscle were determined in commercial finfish and elasmobranchs from Baja California Sur (BCS), Mexico to evaluate dietary Hg exposure for BCS communities, including the relationship of trophic ecology, length and mass with [THg] that might drive future consumption advice (e.g., recommend limited consumption of large fish for some species). The [THg] ranged from 0.06 to 528.02 μg kg(−1) ww in finfish and 17.68 to 848.26 μg kg(−1) ww in elasmobranchs. Relative to the consumption threshold set for predatory fish in Mexico, all species had a concentration below 1000 μg kg(−1) ww. As expected, 16 (4.02%) and 75 (18.84%) individual fish were above advisory thresholds of 500 and 200 μg kg(−1) ww, respectively. The hazard quotients (HQs) in most species were significantly 1.0. Thus, the relative level of risk of high Hg exposure is low for most species. |
| Databáze: | OpenAIRE |
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