“…The MPs abundance in the seawater were similar to that reported in the east coast of Hainan Island (14.9 items L −1 ) (Tang et al, 2021) and in the lagoon of the Xisha Islands (15.9 items L −1 ) (Ding et al, 2019). However, this was much higher than the other observations in the South China Sea, such as the Hong Kong coast, Haikou Bay, Pearl River Estuary, the Xisha Islands, and the Nansha Islands (Cai et al, 2018;Ding et al, 2019;Huang et al, 2019;Nie et al, 2019;Wang et al, 2019;Yan et al, 2019;Qi et al, 2020;Tan et al, 2020;Tsang et al, 2020;Xie et al, 2021).…”