Characteristics and sources of microplastic pollution in the water and sediments of the Jinjiang River Basin,Fujian Province,China

作     者：Ya-ci Liu Lin Wu Guo-wei Shi Sheng-wei Cao Ya-song Li Ya-ci Liu;Lin Wu;Guo-wei Shi;Sheng-wei Cao;Ya-song Li

作者机构：Institute of Hydrogeology and Environmental GeologyChinese Academy of Geological SciencesChina Geological SurveyMinistry of Natural ResourcesShijiazhuang 050061China Fujian Provincial Key Laboratory of Water Cycling and Eco-Geological ProcessesXiamen 361000China 

出 版 物：《China Geology》 (中国地质（英文）)

年 卷 期：2022年第5卷第3期

页      面：429-438页

学科分类：08[工学] 0815[工学-水利工程] 

基　　金：funded by National Natural Science Foundation of China(41907175 and 41902259) China Geological Survey project(DD20190303) 

主　　题：Microplastic Surface water Groundwater Sediment Estuary Hydrogeological survey engineering Environment geological survey engineering Jinjiang River basin 

摘      要：Microplastic pollution is widely distributed from surface water to sediments to groundwater vertically and from land to the ocean *** study collected samples from surface water,groundwater,and sediments from upper to lower reaches and then to the estuary in 16 typical areas in the Jinjiang River Basin,Fujian Province,***,it determined the components and abundance of the microplastics and analyzed the possible microplastic sources through principal component analysis(PCA).As a result,seven main components of microplastics were detected,i.e.,polyethylene(PE),polypropylene(PP),polyvinyl chloride(PVC),polyethylene terephthalate(PET),polyformaldehyde(POM),nylon 6(PA6),and polystyrene(PS).Among them,PE and PP were found to have the highest proportion in the surface water and sediments and in the groundwater,*** surface water,groundwater,and sediments had average microplastic abundance of 1.6 n/L,2.7 n/L and 33.8 n/kg,*** microplastics in the sediments had the largest particle size,while those in the groundwater had the smallest particle *** with water bodies and sediments in other areas,those in the study area generally have medium-low-level microplastic *** pollution sources were determined according to PCA,i.e.,the dominant agriculture-forestry-fishery source,domestic wastewater,and industrial *** study can provide a scientific basis for the control of microplastics in rivers.