1
|
Cegolon L, Mastrangelo G, Covelli S, Petranich E, Pavoni E, Larese Filon F. Occupational exposure to mercury from cinnabar enriched sand in workers of Grado Beach, Gulf of Trieste (North-eastern Italy, upper Adriatic Sea). MARINE POLLUTION BULLETIN 2022; 184:114057. [PMID: 36170761 DOI: 10.1016/j.marpolbul.2022.114057] [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: 06/06/2022] [Revised: 08/11/2022] [Accepted: 08/15/2022] [Indexed: 06/16/2023]
Abstract
Health and safety of occupations entailing extensive skin contact with cinnabar-enriched sand in beaches of Friuli-Venezia Giulia (FVG) Region (North-eastern Italy) have been questioned for possible skin absorption of mercury (Hg). One hundred mg hair was collected from the occipital scalp of 50 male workers of Grado beach and 121 males from FVG general population. Factors associated with hair Hg content were investigated by multivariable logistic (considering Hg levels >1 vs ≤1 mg/kg) and log-transformed linear regression. The median hair concentration of Hg in male beach workers was 0.70 (IQR = 0.42; 1.34) mg/kg, lower than FVG general population's [1.29 (IQR = 0.87-2.06) mg/kg (p < 0.001)]. In both regression models the hair Hg increased with fish consumption, both among beach workers of Grado and FVG general population. The mean Hg levels in beach workers of Grado fell within an acceptable range, not requiring restrictions of their occupational activities.
Collapse
Affiliation(s)
- Luca Cegolon
- Occupational Medicine Unit, Department of Medical, Surgical & Health Sciences, University of Trieste, Trieste, Italy; Public Health Department, University Health Agency Giuliano-Isontina (ASUGI), Trieste, Italy.
| | | | - Stefano Covelli
- Department of Mathematics and Geosciences, University of Trieste, Via Weiss 2, 34128 Trieste, Italy
| | - Elisa Petranich
- Department of Mathematics and Geosciences, University of Trieste, Via Weiss 2, 34128 Trieste, Italy
| | - Elena Pavoni
- Department of Mathematics and Geosciences, University of Trieste, Via Weiss 2, 34128 Trieste, Italy
| | - Francesca Larese Filon
- Occupational Medicine Unit, Department of Medical, Surgical & Health Sciences, University of Trieste, Trieste, Italy
| |
Collapse
|
2
|
Li Z, Hussey NE, Li Y. Quantifying maternal transfer of trace elements and stable isotopes in the endangered pelagic thresher shark (Alopias pelagicus). CHEMOSPHERE 2022; 300:134614. [PMID: 35439495 DOI: 10.1016/j.chemosphere.2022.134614] [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: 02/24/2022] [Revised: 03/27/2022] [Accepted: 04/11/2022] [Indexed: 06/14/2023]
Abstract
To quantify maternal provisioning of nutrients in the pelagic thresher shark (Alopias pelagicus) and the potential for negative impacts, the concentrations of trace elements (essential: Co, Cr, Cu, Mn, Ni, Se, and Zn; nonessential: As, Ba, Cd, Hg, and Pb) and fractionation of stable isotopes (13C and 15N) were analyzed in the muscle and liver of 10 pregnant females and 18 associated embryos. Essential trace elements were observed to be offloaded at higher concentrations to embryos, with the exception of Zn and Ni in liver, while nonessential trace elements were unevenly distributed between maternal-embryo tissues. Observed Hg concentrations were at levels considered toxic in A. pelagicus, but the Se: Hg molar ratios in all embryonic tissues were all greater than one. A negative correlation was observed between transfer ratios and concentrations of all elements in maternal tissue, indicating the existence of a regulatory mechanism in maternal ovaries of A. pelagicus. Compared with maternal specimens, associated embryos had higher δ13C and δ15N values in muscle and liver tissue. Negative correlations were observed between δ13C, δ15N, and Δδ13C values and precaudal length in embryonic muscle tissue potentially reflecting either a dietary-habitat shift in pregnant females during the latter period of gestation or a physiological change modifying fractionation. Higher concentrations of essential elements are linked to potential benefits for embryos during early development, levels of Hg suggested a degree of anthropogenic impact with unknown consequences while the directionality of isotopic fractionation could suggest a potential reproductive migration as a protective mechanism for birthing.
Collapse
Affiliation(s)
- Zezheng Li
- College of Marine Sciences, Shanghai Ocean University, Shanghai, China
| | - Nigel E Hussey
- Department of Integrative Biology, University of Windsor, Windsor, Ontario, Canada
| | - Yunkai Li
- College of Marine Sciences, Shanghai Ocean University, Shanghai, China; Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, Shanghai,China; National Engineering Research Centre for Oceanic Fisheries,Shanghai Ocean University, Shanghai, China; Key Laboratory of Oceanic Fisheries Exploration, Ministry of Agriculture and Rural Affairs, Shanghai,China.
| |
Collapse
|
3
|
Barone G, Storelli A, Meleleo D, Dambrosio A, Garofalo R, Busco A, Storelli MM. Levels of Mercury, Methylmercury and Selenium in Fish: Insights into Children Food Safety. TOXICS 2021; 9:39. [PMID: 33672494 PMCID: PMC7923435 DOI: 10.3390/toxics9020039] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 02/14/2021] [Accepted: 02/18/2021] [Indexed: 02/08/2023]
Abstract
Total mercury (THg), methylmercury (MeHg), and selenium (Se) concentrations were measured in various commercially important fish species. The benefit-risk binomial associated with these chemicals was assessed in children through the probability of exceeding the provisional tolerable weekly intakes (PTWIs) of the contaminants and the Se recommended dietary allowance (RDA). The Se:Hg molar ratios, selenium health benefit values (HBVSe), and monthly consumption rate limits (CRmm) for each species were also calculated. THg and Se were analyzed by atomic absorption spectrophotometer (Shimadzu, Milan, Italy), while MeHg was determined by Trace Ultra gas chromatograph connected with a PolarisQ MS (Thermo Fisher Scientific, Waltham, MA, USA). None of the analyzed fish had Hg levels above the European Community regulatory limits, while most large predators had MeHg levels over the threshold concentration set by US EPA. The estimated weekly intakes of THg and MeHg exceeded in many cases the PTWIs and the Se estimated daily intakes were provided from 0.71% to 2.75% of the RDA. Se:Hg molar ratios above 1 and positive HBVSe index suggested that Se in fish could be enough to alleviate the potential toxic effect of Hg. However, high-risk groups as children should consume fish in moderation because a large consumption pattern, especially of swordfish and tunas, might be of concern for health.
Collapse
Affiliation(s)
- Grazia Barone
- Biosciences, Biotechnlogies and Biopharmaceutical Department, University of Bari “Aldo Moro”, 70010 Valenzano, Bari, Italy; (G.B.); (A.S.); (D.M.); (R.G.); (A.B.)
| | - Arianna Storelli
- Biosciences, Biotechnlogies and Biopharmaceutical Department, University of Bari “Aldo Moro”, 70010 Valenzano, Bari, Italy; (G.B.); (A.S.); (D.M.); (R.G.); (A.B.)
| | - Daniela Meleleo
- Biosciences, Biotechnlogies and Biopharmaceutical Department, University of Bari “Aldo Moro”, 70010 Valenzano, Bari, Italy; (G.B.); (A.S.); (D.M.); (R.G.); (A.B.)
| | - Angela Dambrosio
- Department of Emergency and Organ Transplant, University of Bari “Aldo Moro”, 70010 Valenzano, Bari, Italy;
| | - Rita Garofalo
- Biosciences, Biotechnlogies and Biopharmaceutical Department, University of Bari “Aldo Moro”, 70010 Valenzano, Bari, Italy; (G.B.); (A.S.); (D.M.); (R.G.); (A.B.)
| | - Antonio Busco
- Biosciences, Biotechnlogies and Biopharmaceutical Department, University of Bari “Aldo Moro”, 70010 Valenzano, Bari, Italy; (G.B.); (A.S.); (D.M.); (R.G.); (A.B.)
| | - Maria Maddalena Storelli
- Biosciences, Biotechnlogies and Biopharmaceutical Department, University of Bari “Aldo Moro”, 70010 Valenzano, Bari, Italy; (G.B.); (A.S.); (D.M.); (R.G.); (A.B.)
| |
Collapse
|
4
|
Rodríguez-Gutiérrez J, Galván-Magaña F, Jacobo-Estrada T, Arreola-Mendoza L, Sujitha SB, Jonathan MP. Mercury-selenium concentrations in silky sharks (Carcharhinus falciformis) and their toxicological concerns in the southern Mexican Pacific. MARINE POLLUTION BULLETIN 2020; 153:111011. [PMID: 32275557 DOI: 10.1016/j.marpolbul.2020.111011] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 02/10/2020] [Accepted: 02/19/2020] [Indexed: 06/11/2023]
Abstract
Mercury- Selenium concentrations were determined in 136 samples of Carcharhinus falciformis (Silky shark) sampled from the Chiapas coast, Gulf of Tehuantepec, Mexico during August 2014 - January 2015. Average Hg concentrations in neonates and juveniles (all values in μg g-1 w.w.) were found to be 0.115 and 0.129 respectively, below the maximum permissible limit of 1 μg g-1 set by the Mexican government. However, excess Se values (all values in μg g-1 d.w.) observed in neonates (5.366) and juveniles (2.815) prove to maintain antioxidant ability by inducing Hg excretion and reducing its toxicity. Calculated Biomagnification Factor (BMFTL) denoted high values for the prey C.hippurus, signifying absolute magnification of Hg and Se along the food chain. This study provides key toxicological evidences of Hg- Se interaction and their effects in marine systems and human health.
Collapse
Affiliation(s)
- Juanita Rodríguez-Gutiérrez
- Instituto Politécnico Nacional (IPN), Centro Interdisciplinario de Ciencias Marinas (CICIMAR), Avenida IPN, s/n Colonia Playa Palo de Santa Rita, 23096 La Paz, Baja California Sur, Mexico
| | - Felipe Galván-Magaña
- Instituto Politécnico Nacional (IPN), Centro Interdisciplinario de Ciencias Marinas (CICIMAR), Avenida IPN, s/n Colonia Playa Palo de Santa Rita, 23096 La Paz, Baja California Sur, Mexico
| | - Tania Jacobo-Estrada
- Instituto Politécnico Nacional (IPN), Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD), Calle 30 de Junio de 1520, Barrio la Laguna Ticomán, 07340 Ciudad de México, Mexico
| | - Laura Arreola-Mendoza
- Instituto Politécnico Nacional (IPN), Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD), Calle 30 de Junio de 1520, Barrio la Laguna Ticomán, 07340 Ciudad de México, Mexico.
| | - S B Sujitha
- Instituto Politécnico Nacional (IPN), Centro Mexicano para la Producción más Limpia (CMP+L), Av. Acueducto s/n, Col. Barrio la Laguna Ticomán, Gustavo A. Madero, 07340 Ciudad de México, Mexico
| | - M P Jonathan
- Instituto Politécnico Nacional (IPN), Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD), Calle 30 de Junio de 1520, Barrio la Laguna Ticomán, 07340 Ciudad de México, Mexico
| |
Collapse
|