伊河嵩县城区段沉积物中微塑料分布特征
Distribution characteristics of microplastics in sediments of Yi River in urban section of Song County
沈明辉 1薛佳怡 1吴文静 1白心杰 1秦栎雯 1窦艳艳 1李扬1
作者信息
- 1. 中原工学院能源与环境学院,河南郑州 450007
- 折叠
摘要
微塑料作为一种新型污染物在河道沉积物中的分布特征研究数据仍十分匮乏.以伊河嵩县城区段的沉积物为研究对象,通过样品采集、密度浮选和消解等预处理,以及拉曼光谱检测,研究该河段沉积物中微塑料的分布特征.结果表明:该河段沉积物中微塑料丰度范围为1040～1320n/kg(以干泥重计),平均丰度为1160n/kg(dw),以小于1mm的碎片状微塑料为主,透明的聚对苯二甲酸乙二醇酯(PET)是微塑料的主要成分.该河段沉积物中微塑料污染处于中高水平且与人类活动密切相关.
Abstract
Microplastics,considered an emerging environmental concern,are inadequately studied in terms of their distribution in river sediments.The sediments in the Yi River in urban section of Song County were selected as the research subject,and an investigation on the distribution characteristics of microplastics within the sediment was conducted through sample collection,density flotation,diges-tion,and Raman spectrum detection.The results indicated that the abundances of microplastics in sedimentsin this area exhibited ranging from 1 040 to 1 320 n/kg(measured based on dry weight),with an average abundance of 1 160 n/kg(dw).The microplastics primarily consisted of fragmented particles smaller than 1 mm,with transparent polyethylene terephthalate being the predominant com-ponent.The pollution status of microplastics in sediments in this area was at a moderate to high level and exhibited a strong correlation with anthropogenic activities.
关键词
微塑料/河道/沉积物/分布特征Key words
microplastics/river/sediment/distribution引用本文复制引用
基金项目
河南省重点研发与推广专项(科技攻关)(222102320223)
河南省大学生创新训练项目(202310465032)
中原工学院自然科学基金(K2023QN009)
出版年
2024
NETL
NSTL
万方数据