" In the case of microplastics, it will take several more years to determine what the threshold dose for toxicity is." Several countries have banned the use of microbeads in specific categories of products, including rinse-off cosmetics and toothpastes.

“就微塑料而言，还需要几年的时间才能确定毒性阈值剂量是多少。”一些国家已禁止在特定类别的产品中使用微珠，包括冲洗型化妆品和牙膏。