文献类型：期刊文献

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

作者：Cui, Yaozong[1,2,4];Liu, Mengyang[4];Selvam, S.[3];Ding, Yongcheng[5];Wu, Qianqian[4];Pitchaimani, V. Stephen[3];Huang, Peng[4,6];Ke, Hongwei[2,4];Zheng, Haowen[4];Liu, Fengjiao[7];Luo, Bojun[4];Wang, Chunhui[4];Cai, Minggang[1,2,4,5,6]

机构：[1]Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen 361102, Peoples R China;[2]Xiamen Univ, Fujian Prov Key Lab Coastal Ecol & Environm Studi, Xiamen 361102, Peoples R China;[3]VO Chidambaram Coll, Dept Geol, Tuticorin 628008, Tamil Nadu, India;[4]Xiamen Univ, Coll Ocean & Earth Sci, Xiamen 361102, Peoples R China;[5]Xiamen Univ, Coastal & Ocean Management Inst, Xiamen 361102, Peoples R China;[6]Guangdong Ocean Univ, Coll Ocean & Meteorol, Zhanjiang 524088, Peoples R China;[7]Minnan Normal Univ, Coll Chem Chem Engn & Environm, Zhangzhou 363000, Peoples R China

年份：2022

卷号：299

外文期刊名：CHEMOSPHERE

收录：SCI-EXPANDED(收录号：WOS:000806930200004)、、EI(收录号：20221411877280)、Scopus(收录号：2-s2.0-85127260236)、WOS

基金：Acknowledgments We thank all the members of the R/VSHIYAN III and the R/V KEXUE for their assistance during the research expeditions (NORC2018-07, NORC2018-09) . This work was financially supported by the National Natural Science Foundation of China (NSFC) (U2005207, 41776088, M-0308, 42042050) , Natural Science Key Foundation of Fujian Province, China (2020J01412103) , Project of Industry-University-Research Cooperation of Fujian Province (2019Y4010) .

语种：英文

外文关键词：Microplastics; Size distribution; Surface seawater; South China Sea; Western Pacific Ocean

外文摘要：Microplastic transport in the marginal seas is a key process influencing their ultimate fate in the open oceans. In the present study, we collected seawater samples from the western Pacific Ocean (WP) and the South China Sea (SCS) to investigate the distribution, transport, and possible sources for microplastics. Generally, the range of microplastic levels were 187-1816, 146-1563, and 34.2-622 particles/m3 (averaged in 797 +/- 512, 744 +/- 330, and 201 +/- 134 particles/m3) for the northern SCS, the western SCS, and the WP, respectively. Based on the size distribution, the highest value (390 & PLUSMN; 288 particles/m3) was found for 100-200 mu m, followed by 200-500 mu m (131 +/- 155 particles/m3), and 500-1000 mu m (29.7 +/- 39.2 particles/m(3)), with the lowest for 1-5 mm (13.6 +/- 14.2 particles/m(3)). Granule, yellow, and size < 1000 mu m were their most prevalent characteristics. The main polymer types of microplastics were polyester, rayon, and nylon. A negative correlation between microplastic proportion and particle size was observed in the SCS and the WP. Furthermore, the main sources of microplastics in the northern SCS probably came from the Pearl River. Surface currents and the vertical mixing processes might be two different mechanisms that affect microplastic transport from the WP and the SCS. Future comparison to measured particle size distributions data allows us to explain size-selective microplastic transport in the marine environment, and probably provide guidance on microplastic longevity.