摘要
海洋微塑料是全球关注的新兴环境问题,海湾由于特殊的地理环境特征,成为微塑料分布研究的热点区域。本研究以锦州湾为研究海域,于2017年10月布设了11个点位开展表层海水微塑料样品采集,在实验室采用湿式氧化法开展样品前处理,应用傅立叶变换显微红外光谱仪分析鉴定微塑料成分。研究结果表明,锦州湾表层水体微塑料平均丰度为(0.93±0.59)个/m^(3),微塑料数量占全部塑料样品的96.2%。微塑料的主要成分为聚丙烯和聚乙烯,分别占55.0%和23.5%;线状和片状塑料的比例最高,分别占41.7%和26.2%;白色、蓝色和半透明微塑料分别占35.1%、26.0%和21.4%。受水动力条件和陆域河流输入等影响,锦州湾表层水体中微塑料的空间分布整体呈现北部偏高,向南部递减的趋势。
Marine microplastics pollution is an emerging marine environmental issue and has attracted worldwide attention.Due to the special geographical environment characteristics,the coastal bays become the hotspot for microplastics distribution research.Here we report data on the abundance and characteristics of microplastics collected from surface seawater of the Jinzhou Bay.Samples were collected from 11 sites by horizontal trawling of a plankton net in October 2017.Wet peroxide oxidation process and micro Fourier-transform infrared absorption spectroscopy were conducted to remove the organic material mixed in the sample and identified the composition of microplastics.The research results showed that the average abundance of microplastics in the Jinzhou Bay was(0.93±0.59)items/m^(3),and accounting for 96.2%of the total plastic debris.Polypropylene and polyethylene were the main components of microplastics,accounting for 55.0%and 23.5%,respectively.The main types of microplastics were lines and fragments,accounting for 41.7%and 26.2%,respectively.White,blue and translucent was the most common color,accounting for 35.1%,26.0%and 21.4%,respectively.Affected by hydrodynamic conditions and riverine input,the spatial distribution of microplastics in the surface seawater of the Jinzhou Bay was higher in the north areas than that in the south.
作者
曲玲
张微微
王旭
郭洪发
陈元
李明浩
张守锋
赵骞
王菊英
Qu Ling;Zhang Weiwei;Wang Xu;Guo Hongfa;Chen Yuan;Li Minghao;Zhang Shoufeng;Zhao Qian;Wang Juying(Marine Debris and Microplastics Research Center,National Marine Environmental Monitoring Center,Dalian 116023,China;College of Environmental Sciences and Engineering,Dalian Maritime University,Dalian 116026,China)
出处
《海洋学报》
CAS
CSCD
北大核心
2021年第2期98-104,共7页
基金
国家重点研发计划专项(2016YFC1402201)
海洋公益性行业科研专项(201505034)。
关键词
锦州湾
表层海水
塑料垃圾
微塑料
分布
Jinzhou Bay
surface seawater
plastic debris
microplastics
distribution
