کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5757370 1622718 2017 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Degradation of common polymer ropes in a sublittoral marine environment
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات اقیانوس شناسی
پیش نمایش صفحه اول مقاله
Degradation of common polymer ropes in a sublittoral marine environment
چکیده انگلیسی


- Polymer ropes lost between 0.39 and 1.02% or their mass per month
- Average production of microplastics was 0.427 g per meter per month.
- Of the polymers, polyethylene showed the largest reduction in mechanical properties.
- Light intensity and temperature were linked to reduction in mechanical properties.

Contamination by microplastic particles and fibres has been observed in sediment and animals sampled from the Firth of Clyde, West Scotland. In addition to microplastics released during clothes washing, a probable source is polymer ropes in abandoned, lost and discarded fishing and recreational sailing gear. The fragmentation of polypropylene, polyethylene, and nylon exposed to benthic conditions at 10 m depth over 12 months was monitored using changes in weight and tensile properties. Water temperature and light levels were continuously monitored. The degree of biofouling was measured using chlorophyll a, the weight of attached macroalgae, and colonising fauna. Results indicate microplastic fibres and particles may be formed in benthic environments despite reduced photodegradation. Polypropylene, Nylon, and polyethylene lost an average of 0.39%, 1.02%, and 0.45% of their mass per month respectively. Microscope images of the rope surface revealed notable surface roughening believed to be caused by abrasion by substrate and the action of fouling organisms.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Pollution Bulletin - Volume 118, Issues 1–2, 15 May 2017, Pages 248-253
نویسندگان
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