Microplastic contamination of intertidal sediments of Scapa Flow, Orkney: A first assessment

被引:85
作者
Blumenroder, J. [1 ]
Sechet, P. [1 ]
Kakkonen, J. E. [2 ]
Hartl, M. G. J. [1 ]
机构
[1] Heriot Watt Univ, Inst Life & Earth Sci, Ctr Marine Biodivers & Biotechnol, Edinburgh EH14 4AS, Midlothian, Scotland
[2] Orkney Isl Council, Marine Serv, Kirkwall, Orkney, Scotland
关键词
Microplastic; Intertidal sediment; BEACH SEDIMENTS; MARINE; POLLUTION; SEA; ACCUMULATION; SHORELINES; PARTICLES; COAST;
D O I
10.1016/j.marpolbul.2017.07.009
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The concentration of microplastic particles and fibres was determined in the intertidal sediments at selected sites in Scapa Flow, Orkney, using a super-saturated NaCl flotation technique to extract the plastic and FT-IR spectroscopy to determine the polymer types. Mean concentrations were 730 and 2300 kg(-1) sediment (DW), respectively. Detailed spatial and quantitative analysis revealed that their distribution was a function of proximity to populated areas and associated wastewater effluent, industrial installations, degree of shore exposure and complex tidal flow patterns. Sediment samples from Orkney showed similar levels of microplastic contamination as in two highly populate industrialized mainland UK areas, The Clyde and the Firth of Forth. It was concluded that relative remoteness and a comparative small island population are not predictors of lower microplastic pollution. Furthermore, a larger concerted effort across Scotland and the UK is required to establish a baseline microplastic database for the evaluation of future policy measures.
引用
收藏
页码:112 / 120
页数:9
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