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You could be swallowing a credit card's weight in plastic every week 你可能每周吃掉一张信用卡大小的塑料 Globally, we are ingesting an average of 5 grams of plastic every week, the equivalent of a credit card, a new study suggests. 一项新研究显示，在全球范围内，我们每周平均吞下5g塑料，相当于一张信用卡大小。 This plastic contamination comes from "microplastics" -- particles smaller than five millimeters -- which are making their way into our food, drinking water and even the air. 这些塑料污染物来自“塑料微粒”，就是小于5mm的颗粒，这些颗粒正在进入我们的食物、饮用水，甚至空气中。 Around the world, people ingest an average of around 2,000 microplastic particles a week, according to the study by the University of Newcastle, in Australia. 澳大利亚纽卡斯尔大学进行的研究表明，在全世界人们每周吞下平均约2,000个塑料微粒。 These tiny particles can originate from a variety of sources, including artificial clothes fibers, microbeads found in some toothpastes, or bigger pieces of plastic which gradually break into smaller pieces when they're thrown away and exposed to the elements. 这些微小颗粒来源很广，包括人造服装纤维、一些牙膏中的微珠，或被丢弃后暴露在大自然中逐渐分解成小块的大块塑料。 | 
