Land-based protein sources like chicken, beef, pork and tofu contain as many microplastics as fishes, study finds
Land-based protein sources like chicken, beef, pork and tofu contain as many microplastics as fishes, study finds
Microplastics have been found in nearly 90 per cent of sources of proteins, including meat and plant-based, according to a new study that serves as a startling reminder of how prolific plastic pollution has become.
While the presence of microplastics in commercial fish and shellfish has been known for long, there has been little research into terrestrial protein sources like beef and chicken that make up a large part of the Western diet.
A team of researchers studied samples from 16 different protein types destined for American consumers, including seafood, pork, beef, chicken, tofu, and three different plant-based meat alternatives. They found microplastic particles in 88 per cent of protein food samples tested.
This contamination occurs via multiple sources, including primary microplastics (including synthetic materials) and secondary microplastics (derived from the breakdown of larger plastic particles). Microplastic contamination can have both beneficial and detrimental effects on soil properties.
Additionally, microplastics have been shown to interact with a wide array of contaminants, including pesticides, persistent organic pollutants, heavy metals, and antibiotics, and may act as a vector for contaminant transfer in terrestrial environments. Microplastics and their associated chemicals can be transferred through food webs and may accumulate across multiple trophic levels, resulting in potential detrimental health effects for humans and other organisms.