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Lozano-Bilbao E, Jurado-Ruzafa A, Lorenzo JM, González JA, Hardisson A, González-Weller D, Paz S, Rubio C, Gutiérrez ÁJ. Environmental Factors Influencing Metal Concentrations in Scomber colias Along the Canary Islands. Biol Trace Elem Res 2024:10.1007/s12011-024-04250-0. [PMID: 38874864 DOI: 10.1007/s12011-024-04250-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Accepted: 05/27/2024] [Indexed: 06/15/2024]
Abstract
A total of 140 specimens of Scomber colias were collected from the Canary archipelago waters during the first semester of 2021, with 20 samples from each of the seven main islands. After analyzing the concentrations of metals (Al, Zn, Cd, Pb, Fe, and Cu) with ICP-OES, significant variations were observed among islands, with specimens from Tenerife and Gran Canaria containing higher levels of Al, Cd, and Pb, while those from Lanzarote and Fuerteventura had elevated levels of Zn, Fe, and Cu. These differences are probably related to greater anthropogenic activity around Tenerife and Gran Canaria coasts, leading to higher pollution levels, and the influence of Saharan dust and African upwelling on Lanzarote and Fuerteventura, enriching the waters with nutrients. Specific management strategies to mitigate marine pollution and continuous monitoring are crucial to safeguard marine ecosystems and to ensure food security.
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Affiliation(s)
- Enrique Lozano-Bilbao
- Department of Obstetrics and Gynecology, Pediatrics, Preventive Medicine and Public Health, Toxicology, Legal and Forensic Medicine and Parasitology, Area of Toxicology, University of La Laguna, Campus de Ofra, San Cristóbal de La Laguna, Santa Cruz de Tenerife, 38071, Spain.
- Grupo de Investigación en Ecología Marina Aplicada y Pesquerías (EMAP), Instituto de Investigación de Estudios Ambientales y Recursos Naturales (i-UNAT), Universidad de Las Palmas de Gran Canaria. Campus de Tafira, Las Palmas de Gran Canaria, Las Palmas, 35017, Spain.
| | - Alba Jurado-Ruzafa
- Centro Oceanográfico de Canarias, Instituto Español de Oceanografía, Consejo Superior de Investigaciones Científicas (IEO, CSIC), Calle Farola del Mar n. 22, Santa Cruz de Tenerife, 38180, Spain
| | - José María Lorenzo
- Grupo de Investigación en Ecología Marina Aplicada y Pesquerías (EMAP), Instituto de Investigación de Estudios Ambientales y Recursos Naturales (i-UNAT), Universidad de Las Palmas de Gran Canaria. Campus de Tafira, Las Palmas de Gran Canaria, Las Palmas, 35017, Spain
| | - José Antonio González
- Grupo de Investigación en Ecología Marina Aplicada y Pesquerías (EMAP), Instituto de Investigación de Estudios Ambientales y Recursos Naturales (i-UNAT), Universidad de Las Palmas de Gran Canaria. Campus de Tafira, Las Palmas de Gran Canaria, Las Palmas, 35017, Spain
| | - Arturo Hardisson
- Department of Obstetrics and Gynecology, Pediatrics, Preventive Medicine and Public Health, Toxicology, Legal and Forensic Medicine and Parasitology, Area of Toxicology, University of La Laguna, Campus de Ofra, San Cristóbal de La Laguna, Santa Cruz de Tenerife, 38071, Spain
| | - Dailos González-Weller
- Department of Obstetrics and Gynecology, Pediatrics, Preventive Medicine and Public Health, Toxicology, Legal and Forensic Medicine and Parasitology, Area of Toxicology, University of La Laguna, Campus de Ofra, San Cristóbal de La Laguna, Santa Cruz de Tenerife, 38071, Spain
- Servicio Público Canario de Salud, Laboratorio Central. Santa Cruz de Tenerife, Santa Cruz de Tenerife, 38006, Spain
| | - Soraya Paz
- Department of Obstetrics and Gynecology, Pediatrics, Preventive Medicine and Public Health, Toxicology, Legal and Forensic Medicine and Parasitology, Area of Toxicology, University of La Laguna, Campus de Ofra, San Cristóbal de La Laguna, Santa Cruz de Tenerife, 38071, Spain
| | - Carmen Rubio
- Department of Obstetrics and Gynecology, Pediatrics, Preventive Medicine and Public Health, Toxicology, Legal and Forensic Medicine and Parasitology, Area of Toxicology, University of La Laguna, Campus de Ofra, San Cristóbal de La Laguna, Santa Cruz de Tenerife, 38071, Spain
| | - Ángel José Gutiérrez
- Department of Obstetrics and Gynecology, Pediatrics, Preventive Medicine and Public Health, Toxicology, Legal and Forensic Medicine and Parasitology, Area of Toxicology, University of La Laguna, Campus de Ofra, San Cristóbal de La Laguna, Santa Cruz de Tenerife, 38071, Spain
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Lozano-Bilbao E, Jurado-Ruzafa A, Hardisson A, González-Weller D, Paz S, Techetach M, Gutiérrez ÁJ. Metal content in Sardina pilchardus during the period 2014-2022 in the Canary Islands (Atlantic EC, Spain). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:16066-16075. [PMID: 38236572 DOI: 10.1007/s11356-024-32010-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 01/10/2024] [Indexed: 01/19/2024]
Abstract
The contamination present in an organism varies depending on biological and oceanographic conditions, so monitoring the same species is of great importance to understand the state of the ecosystem. Fifteen specimens in Sardina pilchardus between 12 and 15 cm in total length were collected during the second half of January of each of the study years (2014, 2016, 2018, 2020 and 2022). Samples were analyzed with Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) to measure metals (Al, Cd, Cu, Fe, Li, Ni, Pb and Zn) in mg/Kg. There was a progressive decrease in Pb content over the period, with the highest concentration being obtained in 2014 (0.086 ± 0.065 mg/kg). Locally important oceanic-atmospheric events may occur in the study period that strongly impact the tissue composition of marine organisms. In this case, discontinuous trends were evident in some of the metal concentrations analyzed in the muscle of European sardine in the Canary Islands.
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Affiliation(s)
- Enrique Lozano-Bilbao
- Grupo Interuniversitario de Toxicología Alimentaria y Ambiental, Facultad de Medicina, Universidad de La Laguna (ULL), Campus de Ofra, San Cristóbal de La Laguna, 38071, Santa Cruz de Tenerife, Spain.
- Grupo de Investigación en Ecología Marina Aplicada y Pesquerías (EMAP), Instituto de Investigación de Estudios Ambientales y Recursos Naturales (I-UNAT), Universidad de Las Palmas de Gran Canaria. Campus de Tafira, Las Palmas de Gran Canaria, 35017, Las Palmas, Spain.
| | - Alba Jurado-Ruzafa
- Spanish Institute of Oceanography, Oceanographic Center of the Canary Islands (IEO, CSIC), 38180, Santa Cruz de Tenerife, Spain
| | - Arturo Hardisson
- Grupo Interuniversitario de Toxicología Alimentaria y Ambiental, Facultad de Medicina, Universidad de La Laguna (ULL), Campus de Ofra, San Cristóbal de La Laguna, 38071, Santa Cruz de Tenerife, Spain
- Departamento de Obstetricia y Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Legal y Forense y Parasitología, Área de Toxicología, Universidad de La Laguna. Campus de Ofra, San Cristóbal de La Laguna, 38071, Santa Cruz de Tenerife, Spain
| | - Dailos González-Weller
- Grupo Interuniversitario de Toxicología Alimentaria y Ambiental, Facultad de Medicina, Universidad de La Laguna (ULL), Campus de Ofra, San Cristóbal de La Laguna, 38071, Santa Cruz de Tenerife, Spain
- Servicio Público Canario de Salud, Laboratorio Central. Santa Cruz de Tenerife, 38006, Santa Cruz de Tenerife, Spain
| | - Soraya Paz
- Grupo Interuniversitario de Toxicología Alimentaria y Ambiental, Facultad de Medicina, Universidad de La Laguna (ULL), Campus de Ofra, San Cristóbal de La Laguna, 38071, Santa Cruz de Tenerife, Spain
- Departamento de Obstetricia y Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Legal y Forense y Parasitología, Área de Toxicología, Universidad de La Laguna. Campus de Ofra, San Cristóbal de La Laguna, 38071, Santa Cruz de Tenerife, Spain
| | - Mohamed Techetach
- Environmental and Health Team, Polydisciplinary Faculty of Safi, Cadi Ayyad University, Marrakech, Morocco
| | - Ángel J Gutiérrez
- Grupo Interuniversitario de Toxicología Alimentaria y Ambiental, Facultad de Medicina, Universidad de La Laguna (ULL), Campus de Ofra, San Cristóbal de La Laguna, 38071, Santa Cruz de Tenerife, Spain
- Departamento de Obstetricia y Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Legal y Forense y Parasitología, Área de Toxicología, Universidad de La Laguna. Campus de Ofra, San Cristóbal de La Laguna, 38071, Santa Cruz de Tenerife, Spain
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Lozano-Bilbao E, Jurado-Ruzafa A, Lorenzo JM, González JA, Hardisson A, González-Weller D, Paz S, Rubio C, Gutiérrez ÁJ. A Comparative Analysis of Sparisoma cretense in Island Environments: Unraveling Metal Accumulation Differences in the Canary Islands (Spain, NW African Waters). Animals (Basel) 2023; 13:3787. [PMID: 38136824 PMCID: PMC10740405 DOI: 10.3390/ani13243787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 11/28/2023] [Accepted: 12/06/2023] [Indexed: 12/24/2023] Open
Abstract
This study investigates the impact of varying environmental conditions on the metal composition within the tissues of Sparisoma cretense, contributing to the understanding necessary to offer scientifically sound advice regarding the health status of this species. This knowledge extends beyond fishery production, encompassing implications for food security. The data span the years 2022 and 2023, encompassing both cold and warm climatic seasons. The concentrations of various metals, such as Al, Zn, Cd, Pb, Fe, and Cu, exhibited noteworthy variations across the islands, with significant increases recorded in 2023, particularly during the warm season. The intricate interplay between multiple factors shaped the availability of the analyzed elements in S. cretense. Factors such as rising temperatures during the warm season increased biological activity in marine ecosystems, seasonal fluctuations in weather conditions, water quality, and anthropogenic influences, all contributing to the observed variations in metal concentrations. Additionally, the geological composition of each island and the patterns of marine currents and sediment transport play pivotal roles in these differences. Comprehensive scientific research, monitoring, and environmental surveillance are essential for a holistic understanding of this variability and providing valuable insights for the conservation and management of marine ecosystems in the Canary archipelago.
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Affiliation(s)
- Enrique Lozano-Bilbao
- Grupo Interuniversitario de Toxicología Ambiental y Seguridad de los Alimentos y Medicamentos, Facultad de Medicina, Universidad de La Laguna (ULL), 38071 Santa Cruz de Tenerife, Spain; (A.H.); (D.G.-W.); (S.P.); (C.R.); (Á.J.G.)
- Grupo de Investigación en Ecología Marina Aplicada y Pesquerías (EMAP), Instituto de Investigación de Estudios Ambientales y Recursos Naturales (i-UNAT), Universidad de Las Palmas de Gran Canaria, Campus de Tafira, Las Palmas de Gran Canaria, 35017 Las Palmas, Spain; (J.M.L.); (J.A.G.)
| | - Alba Jurado-Ruzafa
- Instituto Español de Oceanografía, Centro Oceanográfico de Canarias, 38180 Santa Cruz de Tenerife, Spain;
| | - José M. Lorenzo
- Grupo de Investigación en Ecología Marina Aplicada y Pesquerías (EMAP), Instituto de Investigación de Estudios Ambientales y Recursos Naturales (i-UNAT), Universidad de Las Palmas de Gran Canaria, Campus de Tafira, Las Palmas de Gran Canaria, 35017 Las Palmas, Spain; (J.M.L.); (J.A.G.)
| | - José A. González
- Grupo de Investigación en Ecología Marina Aplicada y Pesquerías (EMAP), Instituto de Investigación de Estudios Ambientales y Recursos Naturales (i-UNAT), Universidad de Las Palmas de Gran Canaria, Campus de Tafira, Las Palmas de Gran Canaria, 35017 Las Palmas, Spain; (J.M.L.); (J.A.G.)
| | - Arturo Hardisson
- Grupo Interuniversitario de Toxicología Ambiental y Seguridad de los Alimentos y Medicamentos, Facultad de Medicina, Universidad de La Laguna (ULL), 38071 Santa Cruz de Tenerife, Spain; (A.H.); (D.G.-W.); (S.P.); (C.R.); (Á.J.G.)
| | - Dailos González-Weller
- Grupo Interuniversitario de Toxicología Ambiental y Seguridad de los Alimentos y Medicamentos, Facultad de Medicina, Universidad de La Laguna (ULL), 38071 Santa Cruz de Tenerife, Spain; (A.H.); (D.G.-W.); (S.P.); (C.R.); (Á.J.G.)
- Servicio Público Canario de Salud, Laboratorio Central, 38006 Santa Cruz de Tenerife, Spain
| | - Soraya Paz
- Grupo Interuniversitario de Toxicología Ambiental y Seguridad de los Alimentos y Medicamentos, Facultad de Medicina, Universidad de La Laguna (ULL), 38071 Santa Cruz de Tenerife, Spain; (A.H.); (D.G.-W.); (S.P.); (C.R.); (Á.J.G.)
| | - Carmen Rubio
- Grupo Interuniversitario de Toxicología Ambiental y Seguridad de los Alimentos y Medicamentos, Facultad de Medicina, Universidad de La Laguna (ULL), 38071 Santa Cruz de Tenerife, Spain; (A.H.); (D.G.-W.); (S.P.); (C.R.); (Á.J.G.)
| | - Ángel J. Gutiérrez
- Grupo Interuniversitario de Toxicología Ambiental y Seguridad de los Alimentos y Medicamentos, Facultad de Medicina, Universidad de La Laguna (ULL), 38071 Santa Cruz de Tenerife, Spain; (A.H.); (D.G.-W.); (S.P.); (C.R.); (Á.J.G.)
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Lozano-Bilbao E, Espinosa JM, Thorne-Bazarra T, Hardisson A, Paz S, González-Weller D, Rubio C, Gutiérrez ÁJ. Monitoring different sources of marine pollution in the Canarian intertidal zone using Anemonia sulcata as a bioindicator. MARINE POLLUTION BULLETIN 2023; 195:115538. [PMID: 37742513 DOI: 10.1016/j.marpolbul.2023.115538] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 09/08/2023] [Accepted: 09/09/2023] [Indexed: 09/26/2023]
Abstract
Sea anemones have often been used as bioindicators of contamination because they are semisessile organisms that rarelly leave their niche, which is why they are conducive to affecting the ecosystem at the local level. The objective of this work is to determine whether the concentrations of heavy metals and trace elements in the anemone Anemonia sulcata vary depending on the source of contamination present. In 2021 seventy specimens were collected at five sampling points and fourteen specimens were collected in each point (Control Zone, Thermal Power Plant, Sewage Pipe, Harbour and Tourism) in 2021, on the island of Tenerife. All the areas studied characterized by a pollution condition had higher concentrations of metals and trace elements than the control area. The anemones from Harbour presented a greater number of metals with a higher concentration than the other study areas.
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Affiliation(s)
- Enrique Lozano-Bilbao
- Departamento de Obstetricia y Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Legal y Forense y Parasitología, Universidad de La Laguna, 38200 La Laguna, Santa Cruz de Tenerife, Spain; Ecología Marina Aplicada y Pesquerías, i-UNAT, Universidad de Las Palmas de Gran Canaria, Campus Universitario de Tafira, 35017 Las Palmas de Gran Canaria, Spain
| | - José María Espinosa
- Fundación del Sector Público Estatal Observatorio Ambiental Granadilla, 38001 Santa Cruz de Tenerife, Spain
| | - Thabatha Thorne-Bazarra
- Departamento de Obstetricia y Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Legal y Forense y Parasitología, Universidad de La Laguna, 38200 La Laguna, Santa Cruz de Tenerife, Spain
| | - Arturo Hardisson
- Departamento de Obstetricia y Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Legal y Forense y Parasitología, Universidad de La Laguna, 38200 La Laguna, Santa Cruz de Tenerife, Spain
| | - Soraya Paz
- Departamento de Obstetricia y Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Legal y Forense y Parasitología, Universidad de La Laguna, 38200 La Laguna, Santa Cruz de Tenerife, Spain
| | - Dailos González-Weller
- Servicio de Inspección Sanitaria y Laboratorio, Servicio de Salud Pública, S/C de Tenerife, Islas Canarias 38006, Spain
| | - Carmen Rubio
- Departamento de Obstetricia y Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Legal y Forense y Parasitología, Universidad de La Laguna, 38200 La Laguna, Santa Cruz de Tenerife, Spain
| | - Ángel J Gutiérrez
- Departamento de Obstetricia y Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Legal y Forense y Parasitología, Universidad de La Laguna, 38200 La Laguna, Santa Cruz de Tenerife, Spain.
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Lozano-Bilbao E, Delgado-Suárez I, Paz-Montelongo S, Hardisson A, Pascual-Fernández JJ, Rubio C, Weller DG, Gutiérrez ÁJ. Risk Assessment and Characterization in Tuna Species of the Canary Islands According to Their Metal Content. Foods 2023; 12:foods12071438. [PMID: 37048259 PMCID: PMC10093732 DOI: 10.3390/foods12071438] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 03/22/2023] [Accepted: 03/26/2023] [Indexed: 03/31/2023] Open
Abstract
Bioaccumulation is the process by which living organisms accumulate substances, such as pesticides, heavy metals, and other pollutants, from their environment. These substances can accumulate in the organism’s tissues over time, leading to potential health risks. Bioaccumulation can occur in both aquatic and terrestrial ecosystems, and can have a significant impact on the health of both humans and wildlife. The objective of this study is to find out if the concentrations of metals in the tuna species of the Canary Islands are suitable for human consumption and if they pose a health risk. Fifteen samples of Acanthocybium solandri, Katsuwonus pelamis, Thunnus albacares, Thunnus obesus and Thunnus thynnus present in canaries were analyzed. Ten grams of muscle were taken from each specimen and the metals Al, Cd, Cr, Cu, Fe, Li, Ni, Pb and Zn were determined by Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES). The tuna species that presented more metals with a higher concentration compared to the others was T. thynnus, reaching up to 100 times more than the other studied species in Fe content with 137.8 ± 100.9 mg/Kg, which may be due to the fact that it is the largest species that reaches ages of more than fifteen years. The species Thunnus thynnus should not be suitable for commercialization according to the current legislation on the concentrations of Cd in blue fish, since 75% of the specimens studied exceeded the concentration legislated for Cd. A total of 40% of the studied specimens of this this species exceeded the legislated values for the concentration of Pb in oily fish meat, so this species must be monitored to ensure that it does not pose a risk to human health.
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Affiliation(s)
- Enrique Lozano-Bilbao
- Grupo Interuniversitario de Toxicología Alimentaria y Ambiental, Facultad de Medicina, Universidad de La Laguna (ULL), Campus de Ofra, 38071 San Cristóbal de La Laguna, Spain
- Ecología Marina Aplicada y Pesquerías, i-UNAT, Universidad de Las Palmas de Gran Canaria, Campus Universitario de Tafira, 35017 Las Palmas de Gran Canaria, Spain
- Departamento de Biología Animal y Edafología y Geología, Unidad Departamental de Ciencias Marinas, Universidad de La Laguna, 38206 La Laguna, Santa Cruz de Tenerife, Spain
| | - Indira Delgado-Suárez
- Grupo Interuniversitario de Toxicología Alimentaria y Ambiental, Facultad de Medicina, Universidad de La Laguna (ULL), Campus de Ofra, 38071 San Cristóbal de La Laguna, Spain
- Departamento de Obstetricia y Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Legal y Forense y Parasitología, Área de Toxicología, Universidad de La Laguna, 38200 La Laguna, Santa Cruz de Tenerife, Spain
| | - Soraya Paz-Montelongo
- Grupo Interuniversitario de Toxicología Alimentaria y Ambiental, Facultad de Medicina, Universidad de La Laguna (ULL), Campus de Ofra, 38071 San Cristóbal de La Laguna, Spain
- Departamento de Obstetricia y Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Legal y Forense y Parasitología, Área de Toxicología, Universidad de La Laguna, 38200 La Laguna, Santa Cruz de Tenerife, Spain
- Correspondence:
| | - Arturo Hardisson
- Grupo Interuniversitario de Toxicología Alimentaria y Ambiental, Facultad de Medicina, Universidad de La Laguna (ULL), Campus de Ofra, 38071 San Cristóbal de La Laguna, Spain
- Departamento de Obstetricia y Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Legal y Forense y Parasitología, Área de Toxicología, Universidad de La Laguna, 38200 La Laguna, Santa Cruz de Tenerife, Spain
| | - José J. Pascual-Fernández
- Instituto Universitario de Investigación Social y Turismo (ISTUR), Universidad de La Laguna, 38200 San Cristóbal de La Laguna, Spain
| | - Carmen Rubio
- Grupo Interuniversitario de Toxicología Alimentaria y Ambiental, Facultad de Medicina, Universidad de La Laguna (ULL), Campus de Ofra, 38071 San Cristóbal de La Laguna, Spain
- Departamento de Obstetricia y Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Legal y Forense y Parasitología, Área de Toxicología, Universidad de La Laguna, 38200 La Laguna, Santa Cruz de Tenerife, Spain
| | - Dailos González Weller
- Grupo Interuniversitario de Toxicología Alimentaria y Ambiental, Facultad de Medicina, Universidad de La Laguna (ULL), Campus de Ofra, 38071 San Cristóbal de La Laguna, Spain
- Servicio Público Canario de Salud, Laboratorio Central, 38006 Santa Cruz de Tenerife, Spain
| | - Ángel J. Gutiérrez
- Grupo Interuniversitario de Toxicología Alimentaria y Ambiental, Facultad de Medicina, Universidad de La Laguna (ULL), Campus de Ofra, 38071 San Cristóbal de La Laguna, Spain
- Departamento de Obstetricia y Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Legal y Forense y Parasitología, Área de Toxicología, Universidad de La Laguna, 38200 La Laguna, Santa Cruz de Tenerife, Spain
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