Anthropogenic litter in marine waters and coastlines of Arctic Canada and West Greenland
Anthropogenic litter in marine waters and coastlines of Arctic Canada and West Greenland
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DOI：
10.1016/j.scitotenv.2021.146971
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发表时间：
2021-04-14
影响因子：
9.8
通讯作者：
Provencher, Jennifer F.
中科院分区：
文献类型：
--
作者：
Mallory, Mark L.;Baak, Julia;Provencher, Jennifer F.
尽管对全球海滩上的海洋垃圾（包括塑料碎片）有很多兴趣和研究，但对这种污染物在北极环境中的密度和分布情况知之甚少，特别是在加拿大北极和西格陵兰。我们使用了两个来源的数据，观察漂浮垃圾从船舶在海上，和样方调查的垃圾在低坡度的海滩，建立在这一地区的人为垃圾密度的第一个措施。观察到的大多数垃圾（73%）是塑料，主要是碎片、线和片，沿着桑迪/砾石海滩（中位数1）的平均密度为1.0 +/- 1.7（SD）个/米（-2），在北纬78度的洋面上观察到了这些垃圾。凋落物密度显着更大的网站5公里的社区，和偏远社区附近的垃圾是昂贵的当地来源。然而，与我们的预测相反，我们没有发现凋落物密度随着纬度的增加而减少。总的来说，我们的研究结果证实，这种全球污染物分布在北极这一部分的大部分地区，一些部门更好的废物管理战略可能有助于减少这一偏远地区的发生。(C)2021爱思唯尔有限公司版权所有。
Despite much interest and research into marine litter (including plastic debris) on beaches globally, relatively little is known about the density and distribution of this pollutant in Arctic environments, particularly Arctic Canada and West Greenland. We used two sources of data, observations of floating litter from vessels at sea, and quadrat surveys of litter on low slope beaches, to establish the first measures of anthropogenic litter densities in this region. Most litter observed (73%) was plastic, predominantly fragments, threads and sheets, with a mean density of 1.0 +/- 1.7 (SD) items.m(-2) along sandy/gravel beaches (median 1), and items were observed on the ocean surface as far as 78 degrees N. Litter densities were significantly greater for sites within 5 km of communities, and much of the litter near remote communities was dearly from local sources. However, contrary to our predictions, we did not find that litter densities decreased with increasing latitude. Collectively, our results confirm that this global pollutant is distributed around much of this portion of the Arctic, and that better waste management strategies in a number of sectors may help reduce its occurrence in this remote region. (C) 2021 Elsevier B.V. All rights reserved.