Читать книгу Plastic and Microplastic in the Environment - Группа авторов - Страница 15

Another major source of primary MPs are plastic resins (pellets or powders). The pellets or powder resin (≤ 0.5 mm) are generally cylindrical or disk shaped (Bergmann et al. 2015). These plastics are transported to factories for re‐melting and molding into a wide range of commercial plastic products. The plastics are released into the environment due to improper handling, such as accidents during transport or runoff from production processes.