Microplastics in the surface waters of the South China sea and the western Pacific Ocean: Different size classes reflecting various sources and transport

Yaozong Cui, Mengyang Liu, S. Selvam, Yongcheng Ding, Qianqian Wu, V. Stephen Pitchaimani, Peng Huang, Hongwei Ke, Haowen Zheng, Fengjiao Liu, Bojun Luo, Chunhui Wang, Minggang Cai