The deep sea is a major sink for microplastic debris.
The deep sea is a major sink for microplastic debris.
复制标题
DOI：
10.1098/rsos.140317
复制
发表时间：
2014-12
影响因子：
3.5
通讯作者：
Thompson RC
中科院分区：
文献类型：
--
作者：
Woodall LC;Sanchez-Vidal A;Canals M;Paterson GL;Coppock R;Sleight V;Calafat A;Rogers AD;Narayanaswamy BE;Thompson RC
海洋垃圾主要由塑料组成，是一个全球性的问题，对野生动物、旅游业和航运业产生了负面影响。然而，尽管塑料具有耐久性，其产量呈指数级增长，但监测数据显示，海洋生物栖息地的浓度随之增加的证据有限。在追踪环保塑料命运的调查中，似乎有相当大一部分人造塑料下落不明。即使在大洋环流和浅水沉积物中发现了广泛堆积的微小碎片(微塑料)，也无法解释丢失的碎片。在这里，我们展示了深海沉积物可能是微塑料的下沉。在大西洋、地中海和印度洋的深海沉积物中，纤维形式的微塑料的含量(单位体积)比受污染的海面水中的含量高四个数量级。我们的结果显示了迄今为止未知的大型微塑料储存库的证据。超细纤维的主导地位表明，此前未被报道和未抽样的塑料部分。鉴于深海的广袤和我们调查的所有地点都存在微塑料，深海海底似乎为这个问题提供了答案--所有的塑料都在哪里？
Marine debris, mostly consisting of plastic, is a global problem, negatively impacting wildlife, tourism and shipping. However, despite the durability of plastic, and the exponential increase in its production, monitoring data show limited evidence of concomitant increasing concentrations in marine habitats. There appears to be a considerable proportion of the manufactured plastic that is unaccounted for in surveys tracking the fate of environmental plastics. Even the discovery of widespread accumulation of microscopic fragments (microplastics) in oceanic gyres and shallow water sediments is unable to explain the missing fraction. Here, we show that deep-sea sediments are a likely sink for microplastics. Microplastic, in the form of fibres, was up to four orders of magnitude more abundant (per unit volume) in deep-sea sediments from the Atlantic Ocean, Mediterranean Sea and Indian Ocean than in contaminated sea-surface waters. Our results show evidence for a large and hitherto unknown repository of microplastics. The dominance of microfibres points to a previously underreported and unsampled plastic fraction. Given the vastness of the deep sea and the prevalence of microplastics at all sites we investigated, the deep-sea floor appears to provide an answer to the question—where is all the plastic?
登录
查看更多内容
影响因子：
56.9
作者：
CARPENTER, EJ;SMITH, KL
通讯作者：
SMITH, KL
影响因子：
3.7
作者：
Ramirez-Llodra E;Tyler PA;Baker MC;Bergstad OA;Clark MR;Escobar E;Levin LA;Menot L;Rowden AA;Smith CR;Van Dover CL
通讯作者：
Van Dover CL
影响因子：
5.8
作者：
Moore, CJ;Moore, SL;Weisberg, SB
通讯作者：
Weisberg, SB
影响因子：
5.8
作者：
Lobelle, Delphine;Cunliffe, Michael
通讯作者：
Cunliffe, Michael
影响因子：
3.3
作者：
Doyle, Miriam J.;Watson, William;Sheavly, Seba B.
通讯作者：
Sheavly, Seba B.