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The Environmental Pathways and Veterinary Health Implications of Microplastics and Nanoplastics: A Comprehensive Evaluation of Emerging Contaminants from a One Health Perspective
Summary
This review examines how microplastics and nanoplastics enter animal-based food products including milk, poultry meat, and eggs, and what this means for both veterinary and human health from a One Health perspective. Researchers found that these particles have been documented in various livestock products, but significant gaps remain in understanding contamination from raw, unprocessed sources. The study emphasizes the need for standardized detection methods and farm-to-fork monitoring to identify real contamination sources and develop effective control strategies.
Animal-based foods provide a major source of human exposure. MPs and NPs have been observed in milk and poultry products, such as packaged meat and eggs (mean 11.67 ± 3.98 particles/egg). There is still a research gap on raw milk taken directly from the teat and on raw eggs that have not been handled or packaged. This gap makes it hard to identify real contamination sources and control strategies. The review stresses the need for harmonized detection methods (especially for NPs), monitoring from farm to fork, and practical ways to reduce plastic use on farms and minimize contamination during processing, feed handling, and packaging.