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首页> 外文期刊>Environmental Science & Technology >Synthetic Phenolic Antioxidants and Their Metabolites in Sediments from the Coastal Area of Northern China: Spatial and Vertical Distributions
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Synthetic Phenolic Antioxidants and Their Metabolites in Sediments from the Coastal Area of Northern China: Spatial and Vertical Distributions

机译：中国北方沿海地区沉积物中合成酚类抗氧化剂及其代谢产物的空间和垂直分布

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摘要

Synthetic phenolic antioxidants (SPAs) are widely used in foodstuffs, cosmetics, plastics, and rubber products. Little is known about their spatiotemporal distribution in the marine environment. In this study, a total of 144 surface sediments and three sediment cores were collected from the coastal areas of northern China to determine the spatial and vertical distributions of SPAs. For surface sediments, the total concentrations of five SPAs and their four metabolites (Sigma 9SPAs) ranged from 133 to 4800 (mean: 588) ng/g dry weight (dw). The Sigma 9SPAs in surface sediments showed a decrease trend with the distance from the coast to the open sea. For sediment core samples, the Sigma 9SPAs in the inner-shelf mud (core-1 and core-3) showed a slight increase trend from the bottom to upper layers, whereas that in the central-shelf mud (core-2) did not. The principal component analysis suggests that the composition profiles of SPAs in both surface sediment and sediment core samples were similar, while the sediments close to the coast were obviously affected by the human activities. This is the first study to report the spatial and vertical distributions of SPAs and their metabolites in sediments from the coastal marine environment.
机译：合成酚类抗氧化剂（SPA）广泛用于食品，化妆品，塑料和橡胶制品。关于它们在海洋环境中的时空分布知之甚少。在这项研究中，从中国北方沿海地区收集了总共144个表层沉积物和3个沉积物核心，以确定SPA的空间和垂直分布。对于表层沉积物，五个SPA及其四种代谢物（Sigma 9SPA）的总浓度范围为133至4800 ng / g干重（dw）。从海岸到公海的距离，地表沉积物中的Sigma 9SPAs呈下降趋势。对于沉积物岩心样品，内架泥浆（岩心1和岩心3）中的Sigma 9SPAs从底部到上层显示出轻微的增加趋势，而中部搁架泥浆（岩心2）中没有。主成分分析表明，表层沉积物和沉积物核心样品中SPAs的组成特征相似，而近海沉积物受人类活动影响明显。这是第一个报告SPA及其代谢产物在沿海海洋环境沉积物中的空间和垂直分布的研究。

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  • 来源
    《Environmental Science & Technology》 |2018年第23期|13690-13697|共8页
  • 作者

    Wang Xiaoyun; Hou Xingwang; Zhou Qunfang; Liao Chunyang; Jiang Guibin;

  • 作者单位

    Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China;

    Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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  • 正文语种 eng
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