出口和运输

Microplastics have also been identified as a source of global dispersal of toxic chemicals in plastics. Microplastics are plastics that are smaller than 5 mm (about 0.2 in). They can either be produced intentionally (as plastic pellets or “microbeads”) or fragment from larger plastics. Microplastics have been found in many commercial fish species around the world. Studies have linked exposure to microplastics in aquatic organisms to decreased food consumption, weight loss and energy depletion, decreased growth rate, and decreased fertility.

Studies have found microplastics in beer, wine, energy drinks, tea, milk, honey, sugar, and salt. One study found that infants fed milk from sterilized plastic bottles could ingest as many as 3 million microplastic particles per day. We can also breathe in microplastics. Studies have detected microplastics in human stool, blood, placenta, and lungs. Clothing may be a source of microplastics in air: one study found that airborne microplastics may be released when we wear synthetic (rayon, nylon or other plastic) clothing.

Learn more about plastic waste disposal and recycling.