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해양생물 체내 잔류 미세플라스틱 조사

Investigation of Microplastics from Three Marine Organisms

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참고문헌

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주제분류수산학

초록

Microplastic pollution in the marine ecosystem has been emerged as a global issue. In this study, we investigated theabundance of microplastics from clam Meretrix lusoria, blood arkshell Scapharca broughtonii, and warty sea squirtStyela clava obtained from a local market in Busan, Korea. The marine organisms were digested in 10% KOH, andwere incubated at 40˚C and 150 rpm, for 7 days. The digest was filtered through standard sieve (5 mm, 1 mm, 300μm, and 100 μm), and mciroplastics were identified using a light microscope and microFT-IR. The abundance ofmicroplastics of clam, blood arkshell, warty sea squirt was 0.08 items/g, 0.05 items/g, and 0.12 items/g, respectively. The predominant microplastic size was in the range of 100-300 μm, occupying 48%, and the predominant type wasfiber. The composition of microplastics was mostly rayon, semi-synthetic cellulosic material and polyester, which aremain component of fabric and textile. We strongly believe that this preliminary work may provide useful informationfor the establishment of the standardized analysis method of microplastics ingested by marine organisms.

Abstract

Microplastic pollution in the marine ecosystem has been emerged as a global issue. In this study, we investigated theabundance of microplastics from clam Meretrix lusoria, blood arkshell Scapharca broughtonii, and warty sea squirtStyela clava obtained from a local market in Busan, Korea. The marine organisms were digested in 10% KOH, andwere incubated at 40˚C and 150 rpm, for 7 days. The digest was filtered through standard sieve (5 mm, 1 mm, 300μm, and 100 μm), and mciroplastics were identified using a light microscope and microFT-IR. The abundance ofmicroplastics of clam, blood arkshell, warty sea squirt was 0.08 items/g, 0.05 items/g, and 0.12 items/g, respectively. The predominant microplastic size was in the range of 100-300 μm, occupying 48%, and the predominant type wasfiber. The composition of microplastics was mostly rayon, semi-synthetic cellulosic material and polyester, which aremain component of fabric and textile. We strongly believe that this preliminary work may provide useful informationfor the establishment of the standardized analysis method of microplastics ingested by marine organisms.

참고문헌 (37)

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