Abundance and composition of small floating plastics in the eastern and southern sectors of the Atlantic Ocean

被引：8
|
作者：
Suaria, Giuseppe [1 ]
Cappa, Paolo
Perold, Vonica [2 ]
Aliani, Stefano [1 ]
Ryan, Peter G. [2 ]
机构：
[1] CNR, CNR ISMAR Inst Marine Sci, I-19032 Lerici, La Spezia, Italy
[2] Univ Cape Town, FitzPatrick Inst African Ornithol, ZA-7701 Rondebosch, South Africa
来源：
MARINE POLLUTION BULLETIN | 2023年 / 193卷
关键词：
Microplastic; Atlantic Ocean; Neuston net; Plastic pollution; Marine litter; Floating plastic; DEBRIS; SURFACE; LITTER; SEA;
D O I：
10.1016/j.marpolbul.2023.115109
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
We report the distribution of floating plastics in the eastern and southern sectors of the Atlantic Ocean based on 35 neuston net trawl samples collected during two research cruises in 2016 and 2017. Plastic particles (>200 & mu;m) were found in 69% of net tows, with median densities of 1583 items & BULL;km-2 and 5.1 g & BULL;km-2. Most particles (80% of 158) were microplastics (<5 mm) of secondary origin (88%), followed by industrial pellets (5%), thin plastic films (4%) and lines/filaments (3%). Due to the large mesh size we used, textile fibers were not considered in this study. & mu;FTIR analysis revealed that most particles found in the net were made of polyethylene (63%), followed by polypropylene (32%) and polystyrene (1%). A transect between 0 and 18 & DEG;E along 35 & DEG;S in the South Atlantic Ocean revealed higher densities farther west, supporting the accumulation of floating plastics in the South Atlantic gyre, mainly west of 10 & DEG;E.
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页数：5
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