其他题名The temporal and spatial distribution and surface morphology of atmospheric microplastics around the Bohai Sea
田媛1,3; 涂晨1
; 周倩1,3; 张晨捷1,3; 李连祯1; 田崇国1; 宗政1; 骆永明1,2,3发表期刊环境科学学报
ISSN0253-2468
2020
卷号40期号:4页码:1401-1409
关键词微塑料大气沉降时空分布沉降通量渤海
研究领域Environmental Sciences & Ecology
英文摘要Microplastic pollution has become a key environmental issue. At present,research on microplastic pollution in the atmospheric environment has been carried out only in limited regions. Here,the long-term variation in atmospheric microplastic pollution in different coastal cities around the Bohai Sea was compared by selecting three coastal cities (Yantai,Tianjin and Dalian)as case studies. Atmospheric deposition samples were collected from June 2018 to May 2019. The particle size,color,micro-morphology and components of atmospheric microplastics were characterized by stereomicroscopy,scanning electron microscopy and mu-Fourier transform infrared spectrometry,and the atmospheric deposition flux of microplastics was also calculated. Four types of microplastics comprising fibers,films,fragments and granules were found in the atmospheric deposition samples at the three sampling sites and were dominated by fibers (>90%). The colors of microplastics were mainly transparent,blue,red,and black. Most microplastics were < 1 mm in size and the main components of the identified microplastics were cellophane (>50%)and polyester terephthalate (>30%). All the atmospheric microplastics showed definite surface weathering characteristics. The annual atmospheric deposition flux of microplastics at Yantai,Tianjin and Dalian were 2.7*10~4,8.9*10~4 and 7.2*10~4 particles per square meter,respectively. The results may provide a scientific basis for investigation of atmospheric microplastic pollution and control in the coastal cities around the Bohai Sea.
中文摘要微塑料污染已成为国内外的热点环境问题.目前,针对大气环境中微塑料污染的研究仅在少数地区开展.为比较环渤海沿海城市大气微塑料污染的长周期分布特征,本研究以烟台、天津和大连3个城市为例,于2018年6月-2019年5月进行大气沉降样品的采集,经体视显微镜、扫描电子显微镜和显微傅里叶红外光谱仪观察,分析了大气微塑料的类型、颜色、粒径、成分、微观形貌及主要成分等特征,并计算了微塑料的大气沉降通量.结果表明,在3个采样点大气沉降样品中共同存在纤维、薄膜、碎片和颗粒4种类型的微塑料,其中绝大部分为纤维类(>90%).大气沉降微塑料的颜色主要包括透明、蓝色、红色、黑色等;粒径大多<1 mm.大气沉降样品中的微塑料主要成分为赛璐玢(>50%)和聚对苯二甲酸乙二醇酯(>30%),且微塑料表面存在明显风化特征.烟台、天津和大连地区单位面积微塑料年沉降量分别为2.7*10~4、8.9*10~4和7.2*10~4粒·m~(-2).研究结果可为环渤海海岸城市大气微塑料污染与防控研究提供科学依据.
文章类型Article
资助机构国家重点研发计划; 中国科学院国际合作局对外合作重点项目; 中国科学院前沿科学重点研究项目
收录类别CSCD
语种中文
CSCD记录号CSCD:6692607
引用统计
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/30368
专题中科院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
中科院海岸带环境过程与生态修复重点实验室
作者单位1.中国科学院烟台海岸带研究所,中国科学院海岸带环境过程与生态修复重点实验室,烟台264003;
2.中国科学院南京土壤研究所,中国科学院土壤环境与污染修复重点实验室,南京210008;
3.中国科学院大学,北京100049
推荐引用方式
GB/T 7714田媛,涂晨,周倩,等. 环渤海海岸大气微塑料污染时空分布特征与表面形貌[J]. 环境科学学报,2020,40(4):1401-1409.
APA田媛.,涂晨.,周倩.,张晨捷.,李连祯.,...&骆永明.(2020).环渤海海岸大气微塑料污染时空分布特征与表面形貌.环境科学学报,40(4),1401-1409.
MLA田媛,et al."环渤海海岸大气微塑料污染时空分布特征与表面形貌".环境科学学报 40.4(2020):1401-1409.
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