海洋微塑料源汇搬运过程的研究进展

张晓栋, 刘志飞, 张艳伟, 赵玉龙

Research Progress on Source-to-Sink Transport Processes of Marine Microplastics

Xiaodong Zhang, Zhifei Liu, Yanwei Zhang, Yulong Zhao

图5 水柱实验测试微塑料物理性质对其沉降速度的影响[45] 微圆柱体（红色虚线）是底面圆直径与高相等的特殊圆柱体，其形状近似天然颗粒；Δρ/ρ表示微塑料颗粒相对于海水的过剩密度

Fig.5 Predicted settling velocities of microplastic particles of different physical characteristics [45] Short isometric cylinders (red dash-dot curves) were circular rods with diameters equal to the length, approximating the natural grains; Δρ/ρ represent the relative excess densities of particles to seawater