Total mercury and fatty acids content in selected fish marketed in Quito – Ecuador. A benefit-risk assessment
Total mercury and fatty acids contents were determined in muscles of croaker, snapper, dolphinfish, blue marlin, and shark, from different markets in the Metropolitan District of Quito, Ecuador. Fifty-five samples were collected and analyzed for total mercury using cold vapor atomic fluorescence spe...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-01-01
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| Series: | Toxicology Reports |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214750023000616 |
| _version_ | 1827920330285383680 |
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| author | Gabriela S. Yánez-Jácome David Romero-Estévez Pamela Y. Vélez-Terreros Hugo Navarrete |
| author_facet | Gabriela S. Yánez-Jácome David Romero-Estévez Pamela Y. Vélez-Terreros Hugo Navarrete |
| author_sort | Gabriela S. Yánez-Jácome |
| collection | DOAJ |
| description | Total mercury and fatty acids contents were determined in muscles of croaker, snapper, dolphinfish, blue marlin, and shark, from different markets in the Metropolitan District of Quito, Ecuador. Fifty-five samples were collected and analyzed for total mercury using cold vapor atomic fluorescence spectrometry, and the fatty acids were analyzed using gas chromatography equipped with a flame ionization detector. The lowest total mercury levels were found in snapper [0.041 µg·g−1 wet weight (ww)] while blue marlin showed the highest (5.883 µg·g−1 ww). EPA + DHA ranged from 1.0 mg·g−1 in snapper to 2.4 mg·g−1 in shark. A high omega-3/omega-6 ratio was found for all fish types; however, the HQEFA for the benefit–risk ratio was above 1, suggesting an evident risk to human health. Based on our results, consumption of croaker and dolphinfish is recommended up to one serving per week, considering the importance of EFAs intake and avoiding fish with elevated MeHg content. Therefore, Ecuadorian authorities could enhance public standards for seafood safety and develop consumer advice for pregnant women and young children to determine good fish choices or those to avoid. |
| first_indexed | 2024-03-13T04:10:15Z |
| format | Article |
| id | doaj.art-3c1871db1d84465a920fe26a24dfee31 |
| institution | Directory Open Access Journal |
| issn | 2214-7500 |
| language | English |
| last_indexed | 2024-03-13T04:10:15Z |
| publishDate | 2023-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Toxicology Reports |
| spelling | doaj.art-3c1871db1d84465a920fe26a24dfee312023-06-21T06:55:14ZengElsevierToxicology Reports2214-75002023-01-0110647658Total mercury and fatty acids content in selected fish marketed in Quito – Ecuador. A benefit-risk assessmentGabriela S. Yánez-Jácome0David Romero-Estévez1Pamela Y. Vélez-Terreros2Hugo Navarrete3Centro de Estudios Aplicados en Química, Pontificia Universidad Católica del Ecuador, Quito 170525, Ecuador; Corresponding author.Centro de Estudios Aplicados en Química, Pontificia Universidad Católica del Ecuador, Quito 170525, EcuadorCentro de Estudios Aplicados en Química, Pontificia Universidad Católica del Ecuador, Quito 170525, EcuadorEscuela de Ciencias Biológicas, Pontificia Universidad Católica del Ecuador, Quito 170525, EcuadorTotal mercury and fatty acids contents were determined in muscles of croaker, snapper, dolphinfish, blue marlin, and shark, from different markets in the Metropolitan District of Quito, Ecuador. Fifty-five samples were collected and analyzed for total mercury using cold vapor atomic fluorescence spectrometry, and the fatty acids were analyzed using gas chromatography equipped with a flame ionization detector. The lowest total mercury levels were found in snapper [0.041 µg·g−1 wet weight (ww)] while blue marlin showed the highest (5.883 µg·g−1 ww). EPA + DHA ranged from 1.0 mg·g−1 in snapper to 2.4 mg·g−1 in shark. A high omega-3/omega-6 ratio was found for all fish types; however, the HQEFA for the benefit–risk ratio was above 1, suggesting an evident risk to human health. Based on our results, consumption of croaker and dolphinfish is recommended up to one serving per week, considering the importance of EFAs intake and avoiding fish with elevated MeHg content. Therefore, Ecuadorian authorities could enhance public standards for seafood safety and develop consumer advice for pregnant women and young children to determine good fish choices or those to avoid.http://www.sciencedirect.com/science/article/pii/S2214750023000616Cold vapor atomic fluorescence spectrophotometryGas chromatography with flame ionization detectorCroakerDolphinfishSnapperShark |
| spellingShingle | Gabriela S. Yánez-Jácome David Romero-Estévez Pamela Y. Vélez-Terreros Hugo Navarrete Total mercury and fatty acids content in selected fish marketed in Quito – Ecuador. A benefit-risk assessment Toxicology Reports Cold vapor atomic fluorescence spectrophotometry Gas chromatography with flame ionization detector Croaker Dolphinfish Snapper Shark |
| title | Total mercury and fatty acids content in selected fish marketed in Quito – Ecuador. A benefit-risk assessment |
| title_full | Total mercury and fatty acids content in selected fish marketed in Quito – Ecuador. A benefit-risk assessment |
| title_fullStr | Total mercury and fatty acids content in selected fish marketed in Quito – Ecuador. A benefit-risk assessment |
| title_full_unstemmed | Total mercury and fatty acids content in selected fish marketed in Quito – Ecuador. A benefit-risk assessment |
| title_short | Total mercury and fatty acids content in selected fish marketed in Quito – Ecuador. A benefit-risk assessment |
| title_sort | total mercury and fatty acids content in selected fish marketed in quito ecuador a benefit risk assessment |
| topic | Cold vapor atomic fluorescence spectrophotometry Gas chromatography with flame ionization detector Croaker Dolphinfish Snapper Shark |
| url | http://www.sciencedirect.com/science/article/pii/S2214750023000616 |
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