Nanoplastics Found in Vegetables, Raising Food Safety Concerns

Plastic pollution is not just an ocean problem—it may now reach the food on our plates. A new study from the University of Plymouth shows that nanoplastics, measuring as little as one millionth of a centimeter, can enter crops and accumulate in edible tissues. Using radishes grown in a hydroponic system, researchers found that nearly 5% of exposed polystyrene nanoparticles were absorbed, with a quarter moving into the roots’ edible parts and trace amounts in leaves.

The study reveals that nanoplastics can cross the Casparian strip, a natural plant barrier, suggesting that these particles may infiltrate a wide range of crops. This raises concerns for human and animal health, as exposure could occur through both plant- and seafood-based diets. Unlike larger plastics, nanoplastics are nearly impossible to remove once inside tissues, highlighting the need for further research into the health risks and food safety implications of plastic contamination.

20-09-2025