文献类型：期刊文献

英文题名：A Basis for Standardization: Optimizing Sampling Methods and Quantities for Accurate Microplastic Assessment in a Marine Environment

作者：Zhu, Jiancheng[1];Xiong, Zhengye[1];Dai, Zhenqing[2];Sun, Ruikun[2];Li, Chengyong[3,4,5]

机构：[1]Guangdong Ocean Univ, Coll Elect & Informat Engn, Zhanjiang 524088, Peoples R China;[2]Guangdong Ocean Univ, Sch Chem & Environm, Zhanjiang 524088, Peoples R China;[3]Guangdong Ocean Univ, Analyzing & Testing Ctr, Zhanjiang 524088, Peoples R China;[4]Guangdong Ocean Univ, Guangdong Prov Key Lab Intelligent Equipment South, Guangdong Prov Observat & Res Stn Trop Ocean Envir, Analyt & Testing Ctr Ocean Western Guangdong Prov,, Zhanjiang 524088, Peoples R China;[5]Guangdong Ocean Univ, Shenzhen Inst, Shenzhen 518120, Peoples R China

年份：2026

卷号：130

期号：12

起止页码：3543

外文期刊名：JOURNAL OF PHYSICAL CHEMISTRY B

收录：SCI-EXPANDED(收录号：WOS:001713229600001)、、EI(收录号：20261320355894)、WOS

基金：This work was supported by the National Natural Science Foundation of China (22474027), Innovation Team Project of Universities in Guangdong Province (2025KCXTD020), Guangdong Province Joint Regional Funds-Youth Program (2024A1515110190), Scientific Research Start-upfunds of Guangdong Ocean University (060302122402, 060302122403), Postdoctoral Fellowship Program of CPSF (GZC20250681), China Postdoctoral Science Foundation (2025M780914). We would also like to thank the Guangdong Provincial Observation and Research Station for Tropical Ocean Environment in Western Coastal Water, and the Guangdong Provincial Key Laboratory of Intelligent Equipment for South China Sea Marine Ranching for providing facilities, technical support, and valuable assistance throughout this study.

语种：英文

外文关键词：Beaches - Ecosystems - Environmental monitoring - Fisheries - Marine biology - Microplastic - Seawater - Standardization

外文摘要：The presence and persistence of microplastics (MPs) in the marine environment pose increasing threats to marine organisms and ecosystem health. Environmental monitoring of MPs facilitates assessment of their potential impacts on ecosystems and biota. Although numerous studies have confirmed the widespread presence of MPs pollution in the marine environment, there are still significant differences in the sampling methods and sample quantities used for MPs monitoring. To address these issues, this study investigated the influence of different sampling methods and quantities on the survey results of MPs in the marine environment. The impact of different sample mass on the detection of MPs abundance in sandy and muddy beach sediments of the supratidal, intertidal, and subtidal zones was examined. And the effects of different seawater MPs collection methods (trawl sampling, water collector sampling, and pump sampling) and quantities on MPs abundance detection in seawater were also explored. Results show that the most suitable sample mass for detecting MPs in beach sediments is at least 30 g. Additionally, comprehensive sampling and monitoring of the supratidal, intertidal, and subtidal zones should be conducted to ensure accurate assessment of MPs abundance. Seawater samples were collected via trawl, water collector sampling, and pump sampling to evaluate effects of methods, sample quantities, filter aperture, and sampling depth on the monitoring abundance of MPs. Results show that the optimal sampling parameters are trawl durations at least 10 min and water collector sampling volumes at least 10 L. In the water collector sampling method, the total abundances of MPs after filtration through 48 and 330 mu m filters are at the same order of magnitude, indicating that the filtration pore size has no significant effect on the total abundance of MPs. However, the size ranges of retained MPs differ significantly between the two pore sizes. Furthermore, while no significant difference is observed in MPs abundance among different water layers in Leizhou Bay, variations are found in polymer composition and MPs size distribution. This research is helpful in improving the accurate monitoring of MPs in the marine environment.