Agricultural soils are a major depository of nanoplastics.
Nanoplastics readily move from soil into crops, being taken up by roots and translocated throughout the plant, eventually ending up in the edible parts.
Not only do nanoplastics hinder the physiology of plants, they have also been shown to reduce levels of mineral elements, amino acids, and fatty acid profiles in crops.
A recent study revealed the extent of the mineral decline caused by nanoplastic uptake in crops. In rice, calcium declined by 19%, magnesium by 18%, manganese by 41%, and zinc by 27%.
Reductions in plant growth, size, and germination rates were also observed.
This is yet another contributor to the declining health of our food system, and finding a solution won’t be easy.