Micro and nanoplastics are widespread in the global food supply and may have implications for food safety and security, according to a study led by the CSIRO.
The study, one of the first to examine the academic literature on microplastics from a food safety and security perspective, builds upon previous research that primarily focused on tracking plastics in fish.
It reveals that plastics and their additives are present at various concentrations, not only in fish but also in products such as meat, chicken, rice, water, take-away food, and fresh produce.
Dr Jordi Nelis, an analytical chemist, food safety specialist, and lead author of the paper, explained that these plastics enter the human food chain through multiple pathways, including ingestion as observed in fish studies, but primarily through food processing and packaging.
The study highlights the need to understand the extent of plastic contamination in food to ensure proper management of food safety and security.
Another significant pathway for plastic contaminants to enter the agricultural system is through biosolids sourced from wastewater treatment. These biosolids, used as fertilisers, can contain plastic particles from various sources, potentially affecting crop production and ecosystem resilience.
Consumers can contribute to reducing plastic waste by minimizing usage, especially in the kitchen, and adopting sustainable laundry practices.
