12 Aug 2021 --- Researchers from Helmholtz Zentrum Hereon, Germany, have discovered microplastics might be transporting toxic metals into the food chain. According to the study, the smaller the plastic particles, the larger the harmful cargo they can carry. Some metal ions, such as chromium, iron and tin attached themselves almost entirely to the microplastics. Others, such as cadmium, zinc and copper, showed almost no accumulation on the plastic over the entire test period.
