Research

연구

논문실적

Research Paper Performance

오션은 해양쓰레기의 양과 종류, 분포, 발생원인과 피해, 교육에 대한 연구 결과를 국내외 논문으로 발표합니다.
2012년부터 2023년까지 29편의 논문을 발표하였고 이 중 20편이 SCI급 국제학술지였습니다.
모든 활동은 연구결과에 바탕을 두고 추진합니다.

논문요청 : osean@osean.net
* 이 자료를 사용하고자 할 때는 반드시 출처를 표시해야 합니다.

[논문 #24_SCI] Eo et al. (2018). Abundance, composition, and distribution of microplastics larger than 20 μm in sand beaches of South Korea. Environmental Pollution 238:894-9

2018-11-06

Abundance, composition, and distribution 

of microplastics larger than 20 μm in sand beaches 

of South Korea. 


Eo, S., Hong, S.H., Song, Y.K., Lee, Jongsu, Lee, Jongmyoung, Shim, W.J., 2018. 
Environmental Pollution 238:894-9




Abstract

To support microplastic management, the abundance, composition, and spatial distribution of microplastics on a national scale must be known. Hence, we studied the baseline level of microplastic pollution at 20 sandy beaches along the South Korean coast. All microplastic particles extracted from the sand samples were identified down to 20 μm in size using Fourier transform infrared spectroscopy. The abundances of large microplastics (L-MPs; 1-5 mm) and small microplastics (S-MPs; 0.02-1 mm) were in the range of 0-2088 n/m2and 1400-62800 n/m2, respectively. Maximum microplastic abundance was in the size range of 100-150 μm, and particles smaller than 300 μm accounted for 81% of the total abundance. Expanded polystyrene (EPS) accounted for 95% of L-MPs, whereas S-MPs were predominantly composed of polyethylene (49%) and polypropylene (38%). The spatial distribution of L-MPs, excluding EPS, was significantly related to population, precipitation, proximity to a river mouth and abundance of macroplastic debris on beach. However, there were no relationships between S-MPs and other environmental and source-related factors, except for macroplastic debris and L-MPs excluding EPS. These results imply that S-MPs are mainly produced on beaches by weathering, whereas L-MPs other than EPS are mainly introduced from land-based sources and are also partly produced on beaches.