Influence of the method of production of eggs on the daily intake of polycyclic aromatic hydrocarbons and organochlorine contaminants: An independent study in the Canary Islands (Spain) |
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| Institution: | 1. Centre for Marine Environmental Studies (CMES), Ehime University, Matsuyama 790-8577, Japan;2. Pathology Division, National Fisheries Research and Development Institute, Busan 619-902, Republic of Korea;1. Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, China;2. The Key Laboratory of Geographic Information Science of the Ministry of Education, School of Geographical Sciences, East China Normal University, Shanghai 200241, China;3. School of Urban and Planning, Yancheng Teachers University, Yancheng 224051, China;1. Clinical and Analytical Toxicology Service (SERTOX), University of Las Palmas de Gran Canaria, Plaza Dr. Pasteur s/n. 35016 Las Palmas de Gran Canaria, Spain;2. AVAFES (Veterinary Association for the Protection of Exotic and Wild Fauna). Veterinary Faculty, University of Las Palmas de Gran Canaria, Trasmontana s/n, 35400 Arucas (Las Palmas), Spain |
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| Abstract: | Analysis of 16 polycyclic aromatic hydrocarbons (PAHs), 20 organochlorine pesticides (OCPs) and 18 polychlorinated biphenyls (PCBs) were performed on eggs from three different production types (conventional, free-run and organic) collected from the markets of the Canary Islands (Spain). Unlike other studies we did not found differences in the content of PCBs or OCPs of eggs in relation to its production type. Median ∑OCPs content was 3.87 ng g?1 fat, being dieldrin, dicofol, hexachlorobenzene, p,p′-DDE and p,p′-DDT the most frequently detected. Median ∑PCBs value was 3.93 ng g?1 fat, with 79.9% of this amount coming from the marker PCBs. Two samples, one free-run and one organic, greatly exceeded the current European Commission (EC) limit of 2.5 pg TEQPCDD/F g?1 lipid, but the rest were well below of this limit. The concentrations of PAHs in conventionally produced eggs were almost 4 times higher than in free-run or organic eggs. Mean dietary intake estimates of the organochlorine contaminants based on consumption of eggs, regardless of the type chosen, is negligible for the Canary Islands’ population. However, the median dietary intake estimates of PAHs greatly depend on the type of eggs chosen, being much lower when free-run and organic eggs are consumed. |
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| Keywords: | Organochlorine pesticides Polychlorinated biphenyls Polycyclic aromatic hydrocarbons Hen eggs Organic eggs |
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