来自南中国海的深水沉积颗粒物中的持久化有机污染物
Jia-De Lee1, Tsyr-Huei Chiou2, Hong-Jie Zhang3
1Department of Environmental Science and Engineering, National Pingtung University of Science and Technology, Neipu, Pingtung 91201, Taiwan.
Toxics
|December 22, 2023
概括
这项研究测量了来自南中国海的深海颗粒中的持久性有机污染物 (POP). 聚二乙烯 (PBDE) 是发现的最丰富的POPs,在较浅的深度处含量更高.
科学领域:
- 环境化学环境化学
- 海洋科学 海洋科学
- 污染研究 污染研究
背景情况:
- 海洋持久性有机污染物 (POP) 数据很少,特别是在深海环境中.
- 了解海洋颗粒物中的POP分布对于评估环境污染至关重要.
研究的目的:
- 调查南中国海深水沉积颗粒中的背景POP水平.
- 量化六种特定的POPs:PCDD/Fs,DL-PCBs,PBDEs,PBDD/Fs,PCDEs,和 PBBs. 为了量化六种特定的POPs:PCDD/Fs,DL-PCBs,PBDEs,PBDD/Fs,PCDEs,和 PBBs. 为了量化六种特定的POPs:PCDD/Fs,DL-PCBs,PBDEs,PBDD/Fs,PCDE和 PBBs.
主要方法:
- 分析了在南中国海2000米和3500米深度收集的8个聚合颗粒样本.
- 使用已知的分析技术量化六个类别的POPs.
主要成果:
- 聚二乙烯 (PBDE) 是主要的POP,平均度为125±114 ng/g干重.
- 多二二二氧化物 (PCDD) 具有最高的毒性等价值 (TEQ),其次是PBDD和DL-PCB.
- 与3500米深度相比,2000米的PBDE水平和质量流量更高.
结论:
- PBDE是南中国海深水海洋沉积颗粒的主要组成部分.
- 这项研究提供了海洋深水颗粒中POPs的新数据,为全球环境监测工作做出了贡献.
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