摘要：Microplastics in the seawater of Ningbo quantitatively and qualitatively were characterized. Water samples were collected with 77 qm mesh net by vertical towing in summer 2016. The results indicated that microplastics were ubiquitous in the seawater ofNingbo, 2361 microplastics were found in 19 stations, and the concentration of microplastics ranged from 4.0-165.0 piece/m3, in average of 38.0 piece/m3; the majority of plastics ranged from 1000 qm to 5000 qm in size, which constituted 43.8% of the total samples, in average of 1116.0 qm. The most frequent geometries were fibers, taking 90.5% of the total, followed by particles for 7.2%. The most frequent color were colored ones, followed by transparent, and black, accounted for 36.8%, 35.4%, and 21.9% of the total samples, respectively. The most frequent chemical composition of microplastics were polyethylene tereph- thalate and polyethylene, accounted for 53.6% and 25% of the total, respectively. The microplastics pieces were mostly originated from plastic litter from terrestrial sources. This study provided important reference for better understanding microplastic levels in seas.
关键词：Microplastic;Ningbo coast;characteristics;spatial distribution
