文献类型：期刊文献

英文题名：Consequences of anthropogenic activities and beach dynamics on vertical distribution of microplastics in the mid-intertidal sediments of Donghai Island, China

作者：Machendiranathan, Mayakrishnan[1,2];Hu, Yaoqiang[1];Chen, WeiCong[1];Tan, Ao[1];Xie, Lingling[1,2];Chen, Fajin[1,2];Jin, Guangzhe[1,2,3];Ranith, Rajamohanan Pillai[4];Senthilnathan, Lakshmanan[5]

机构：[1]Guangdong Ocean Univ, Lab Coastal Ocean Variat & Disaster Predict, Coll Ocean & Meteorol, Zhanjiang 524088, Guangdong, Peoples R China;[2]Guangdong Ocean Univ, Key Lab Climate Resources & Environm Continental, Zhanjiang 524088, Guangdong, Peoples R China;[3]Southern Marine Sci & Engn Guangdong Lab Zhanjian, Zhanjiang 524088, Guangdong, Peoples R China;[4]KUFOS Amen Ctr, Nansen Environm Res Ctr India, Madavana PO, Kochi 682506, Kerala, India;[5]Acad Maritime Educ & Training AMET Deemed Univ, Dept Marine Biotechnol, Chennai 603112, Tamil Nadu, India

年份：2022

卷号：86

期号：6

起止页码：1342

外文期刊名：WATER SCIENCE AND TECHNOLOGY

收录：SCI-EXPANDED(收录号：WOS:000862031200004)、、EI(收录号：20224212902191)、Scopus(收录号：2-s2.0-85139535656)、WOS

基金：This work was supported by the National Natural Science Foundation of China (U1901213), Guangdong Natural Science Foundation of China (2019B1515120066, 2016A030312004), Southern Marine Science and Engineering Guangdong Laboratory, Zhanjiang (ZJW-2019-08), and Project of Enhancing School with innovation of Guangdong Ocean University (GDOU2016050260).

语种：英文

外文关键词：China; Donghai Island; microplastics; sediments; vertical distributions

外文摘要：Microplastic accumulation and resulting degradation are significant threats to the coastal ecosystems around the world. Baseline information on microplastics and their sources is of great importance for a permanent waste management system. The present study focused on the vertical distribution and characteristics of microplastics in the mid-intertidal zone of Donghai Island, China. At eight locations, sediment samples were collected from surface to a depth of 30 cm at intervals of 5 cm. Overall, we found five different polymer types, and vertical distributions of microplastics varied ranging from 0 to 200 particles/kg, with the mean value of 32.92 +/- 41.35 particles/kg. Sediment samples collected from all stations contained microplastics with high contribution of fibres. Intruded microplastic materials recorded in sediment samples at a depth of 30 cm demonstrate that microplastics may be present at depths greater than 30 cm. Scanning electron microscopy-energy dispersive X-ray (SEM-EDAX) analysis revealed presence of common elements in the microplastics surface (silicon, aluminium, magnesium, copper, and calcium). Based on the observations and results from this study, we suggest implementing a robust microplastic removal management program in Donghai Island to avoid serious microplastic intrusion effects on benthos and environmental contamination.