한국 연안 이매패류 및 해수 내 미세플라스틱 오염현황 조사

Abstract

Microplastic contamination in the marine environment is an increasing concern. Bivalves are useful bioindicators of microplastic contamination in the marine environment due to several advantages such as extensive filter feeding activity and broad geographical distriburion. This study investigated microplastic contamination in bivalves and seawater at 12 sites along the Korean coasts. The concentration of microplastics in bivalves and seawater were in range of 0.05 &#8211 1.27 n/g (0.20 &#8211 6.68 n/individual) and 0.47 &#8211 2.02 n/L (470 - 2020 n/m3), respectively. There was no significant relationship in the abundance of microplastics between bivalves and seawater however, the dominant features of microplastics such as shape, polymer type and size were similar. The major polymer type was polypropylene (PP), polyethylene (PE), polystyrene (PS) and polyester (PES). The fragment was dominant shape, and the most common size class was 100 &#8211 200 μm.