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淡水中的微塑料里，60% 都是微纤维
塑料废弃物会进一步分化，变成细微的塑料微粒，小到能飘扬在空中或随水源活动。6 月宣布的一项研讨发现，每人每年均匀吸入或吞入至少7.4 万颗塑料微粒。除此之外，咱们周围的环境里还有很多的塑料微珠和纤维。
那么，微塑料最常见的类型是什么呢？最近的研讨发现，至少在淡水中，最常见的微塑料是一种来自洗衣棉绒屑的人造纤维碎片。
“一开始咱们感兴趣的是塑料微珠，在检测塑料微珠的过程中却发现微纤维的含量更胜一筹：咱们测得的微塑料里微纤维占到了 60% 之多。”宾西法利亚州立大学贝伦德学院（Penn State Behrend）的化学家雪莉·梅森（Sherri Mason）说道，她专门研讨淡水体系的塑料污染。
“这让我十分惊奇，你或许觉得‘诶，这种事真的不应发作啊。’由于咱们都会把洗衣机过滤槽中的棉绒屑整理掉。但实际上，‘在一开始洗的时分就会有棉绒从衣物上掉落，甩干时当然就会有残留。’”
组成纺织品上掉落的纤维不行生物降解，会混入废水之中，并随之分散传达……[检查全文]
Microplastics in Fresh Water Are Mostly Laundry Lint
Plastic waste breaks down into ever smaller pieces, becoming tiny enough towaftin the air and flow in the water. Astudy published in Junefound that a personon average inhales or swallows at least 74,000 microscopic particles of plastic each year. And there are multitudes of miniscule plastic beads and fibers in the environment.
So what’s the most common type of microplastic? Recent research finds that, in freshwater at least, it’s tiny pieces of artificial fibers—from laundrylint.
“We were interested in themicrobeads, and we found them, but we found microfibers much more prominently. So sixty percent of the microplastics that we obtained were actually these microfibers.”
Sherri Mason is a chemist specializing in plastic pollution in freshwater systems at Penn State Behrend.
“I was surprised although, like, you kind of go ‘oh I really shouldn't have been.’ Because we all clean out our lint filters
on our dryers. We should be like, ‘Oh of course if it's coming off in the dryer that whole process is starting in the washer.’”
Synthetic textilesshednon-biodegradable fibers, which enter wastewater. And travel beyond…[full transcript]
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