Abstract: In order to understand the distribution and the level of pollution of microplastics in the artificial reef area and control area in the Xiangyun Bay Marine Ranching in Tangshan City， Hebei Province, microplastics in its surface water were investigated from July to August 2020. The results showed that a total of 8 colors and 3 types of microplastics were detected in Xiangyun Bay Marine Ranching. These were mainly in blue and black color and fiber, film and particles, and the materials were polyethylene terephthalate (PET), polyethylene (PE), polypropylene (PP), nylon (PA), and etc. The diameters of microplastics in the artificial reef area and the control area were mainly concentrated in 1 mm and below, accounting for 74.85% and 74.15% in the total in their areas. The average abundance of microplastics in the artificial reef area was (0.82±0.16) ind./L, the average abundance in the control area was (0.88±0.33) ind./L, without significant difference in the abundance of microplastics between the two areas(P>0.05). The pollution load index in the artificial reef area and the control area were both<1. It was shown that the distribution characteristics of microplastics in the artificial reef area were consistent with the control area in the Xiangyun Bay Marine Ranching. The abundance of microplastics was more affected by the particle size. The smaller the particle size, the greater the abundance. The microplastics in the Xiangyun Bay Marine Ranching were slightly polluted.
2021, Vol. 36 
