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Forcada S, Menéndez Miranda M, Stevens F, Royo LJ, Fernández Pierna JA, Baeten V, Soldado A. Industrial impact on sustainable dairy farms: Essential elements, hazardous metals and polycyclic aromatic hydrocarbons in forage and cow's milk. Heliyon 2023; 9:e20977. [PMID: 37886788 PMCID: PMC10597811 DOI: 10.1016/j.heliyon.2023.e20977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 10/11/2023] [Accepted: 10/12/2023] [Indexed: 10/28/2023] Open
Abstract
Sustainable dairy farms are characterised by the self-production of forage for animal feed. These farms are sometimes located near industrial areas, entailing a risk of food chain contamination with hazardous metals and polycyclic aromatic hydrocarbons (PAHs). Accordingly, evaluating the impact of pollution on forage and milk is of great interest. In this study, the effects of industrial factors on sustainable forage from 43 dairy farms and possible correlations between inorganic elements and PAHs were studied. Spearman's correlation and principal component analysis (PCA) were performed for the forage and milk. Most of the inorganic elements in the forage were below the maximum residual limits for cadmium (Cd) and lead (Pb), established in EU 2013/1275 and EU 2019/1869, respectively. However, arsenic (As) and mercury (Hg) levels were above their respective limits in the forage (EU 2019/1869). No milk samples exceeded the maximum residual limits for Pb (EU 488/2014) or Cd (EU 1881/2006) in dairy products. Heavy-weight PAHs (HW-PAHs, four or more aromatic rings) were detected in forage but not in milk. In the forage samples, HW-PAHs were positively correlated with Zn and Cd. In addition, some hazardous metals (chromium (Cr), iron (Fe), As, Hg, and Pb) also were positively correlated with Zn and Cd. Interestingly, no correlations were found between forage pollutants and milk, suggesting that these pollutants have a low transfer rate to milk. The PCA results highlighted the predominant contribution of PAHs to the global variance in forage samples collected at different distances from industrial areas. In milk, the contributions of hazardous metals and PAHs were more balanced than in forages. Finally, when distances to potential pollution sources were included in the PCA of forage samples, a negative correlation was observed between the former and the concentrations of HW-PAHs, Cd, and Zn, suggesting that thermal power plants and steel factory emissions were the main sources of polluting forage in this area.
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Affiliation(s)
- Sergio Forcada
- Regional Service for Agrofood Research and Development (SERIDA), PO Box 13, 33300, Asturias, Spain
| | - Mario Menéndez Miranda
- Regional Service for Agrofood Research and Development (SERIDA), PO Box 13, 33300, Asturias, Spain
| | - François Stevens
- Department of Knowledge and Valorization of Agricultural Products, Walloon Agricultural Research Centre (CRA-W), Chaussée de Namur 24, 5030, Gembloux, Belgium
| | - Luis J. Royo
- Regional Service for Agrofood Research and Development (SERIDA), PO Box 13, 33300, Asturias, Spain
| | - Juan Antonio Fernández Pierna
- Department of Knowledge and Valorization of Agricultural Products, Walloon Agricultural Research Centre (CRA-W), Chaussée de Namur 24, 5030, Gembloux, Belgium
| | - Vincent Baeten
- Department of Knowledge and Valorization of Agricultural Products, Walloon Agricultural Research Centre (CRA-W), Chaussée de Namur 24, 5030, Gembloux, Belgium
| | - Ana Soldado
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, University of Oviedo, Avda. Julián Clavería 8, 33006, Asturias, Spain
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Collas C, Gourdine JL, Beramice D, Badot PM, Feidt C, Jurjanz S. Soil ingestion, a key determinant of exposure to environmental contaminants. The case study of chlordecone exposure in free-range pigs in the French West Indies. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 316:120486. [PMID: 36279992 DOI: 10.1016/j.envpol.2022.120486] [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: 05/25/2022] [Revised: 10/14/2022] [Accepted: 10/17/2022] [Indexed: 06/16/2023]
Abstract
Ingested soil may expose free-range animals to environmental pollutants. In pigs, soil ingestion is few described whereas their burrowing behaviour suggests that it could be high. Although highly productive pigs are generally reared indoor, free-range farming is increasing in view of ethical considerations for animal welfare and is a common practice for subsistence agriculture systems. The experiment lasted 8 weeks (2 for adaptation, 6 for measurements) with 24 growing pigs of Guadeloupean Creole (CR) or Large White (LW) breeds. Pigs were assigned to 3 outdoor treatments: high pasture HP (>60 days of regrowth), low pasture LP (35 days of regrowth), and sweet potato SP (sweet potato field). Titanium (soil marker) and chromium (faecal output marker) contents of faeces, vegetation and soil samples were used to estimate individual daily soil ingestions. The average, 10th and 90th percentiles were 440, 200 and 726 g of dry soil per 100 kg body weight, respectively, without significant differences between the 3 outdoor treatments or the 2 breeds but with a significant period (i.e. week of measurements) × treatment interaction (P < 0.001). In the French West Indies, animals may be exposed to chlordecone (CLD), a very persistent organochlorine insecticide. Simulations of CLD tissue contamination due to ingestion of contaminated soil were carried out and compared to the maximum residue limit. These results show that grazing management needs to be adapted to effectively limit soil ingestion by pigs and the impact of a contaminated environment on the sustainability of pig systems.
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Affiliation(s)
- Claire Collas
- Université de Lorraine, INRAE, URAFPA, 54000, Nancy, France.
| | - Jean-Luc Gourdine
- INRAE Centre Antilles-Guyane, UR-ASSET, Guadeloupe, 97170, Petit-Bourg, France
| | - David Beramice
- INRAE Centre Antilles-Guyane, UE-PTEA, Guadeloupe, 97170, Petit-Bourg, France
| | - Pierre-Marie Badot
- Université de Bourgogne Franche-Comté-CNRS, Laboratoire Chrono-environnement, 25030, Besançon, France
| | - Cyril Feidt
- Université de Lorraine, INRAE, URAFPA, 54000, Nancy, France
| | - Stefan Jurjanz
- Université de Lorraine, INRAE, URAFPA, 54000, Nancy, France
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Domingo JL. Concentrations of toxic elements (As, Cd, Hg and Pb) in cow milk: A review of the recent scientific literature. INT J DAIRY TECHNOL 2021. [DOI: 10.1111/1471-0307.12764] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Jose L. Domingo
- Laboratory of Toxicology and Environmental Health School of Medicine Universitat Rovira i Virgili San Llorenç 21 43201 Reus CataloniaSpain
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Wang C, Guan D, Chen C, He S, Liu X, Wang C, Wu H. Rapid detection of unconjugated estriol in the serum via superparamagnetic lateral flow immunochromatographic assay. Anal Bioanal Chem 2017; 410:123-130. [DOI: 10.1007/s00216-017-0699-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 09/09/2017] [Accepted: 10/10/2017] [Indexed: 12/13/2022]
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