塑料微粒是塑料的微小碎片，研究人员定义这些微塑料大小介于100奈米至5公厘之间，主要由塑料垃圾分解产生。
Plastic particles are tiny fragments of plastic, and researchers have defined the size of these plastic particles at 100 nanometers to 5 centimeters, which are produced mainly from the decomposition of plastic garbage.