海洋生物体内砷含量及其形态研究进展
作者简介:
张伟(1982-),女,博士,研究方向为环境科学,E-mail:zh_wei@gzhu.edu.cn
- 1. 广州大学, 大湾区环境研究院, 珠江三角洲水质安全与保护教育部重点实验室, 广州 510006;
- 2. 中国科学院南海海洋研究所, 中国科学院热带海洋生物资源与生态重点实验室, 广州 510301;
- 3. 中国科学院大学, 北京 100049
关键词:
- 砷元素 /
- 海洋生物 /
- 砷形态 /
- 进展
摘要: 砷是一种强毒性化学物质，毒性不但与其在环境中的总量有关，更与其化学形态密切相关。砷在海洋环境中普遍存在，而海洋生物体内砷化合物的含量较高，是海洋环境中的“砷库”。本文结合国内外对海洋生物体内总砷及砷形态的分析，总结了国内外对各类海洋生物，包括海藻、海葵、多毛类、贝类、鱼类和其他高营养级海洋动物体内不同形态砷含量、累积和形态转化等研究概况和进展。针对目前研究工作和技术水平差异，建议我国应在检测技术、样品前处理、标准品制备、砷对生物体的健康效应等方面开展深入研究，以期揭示海洋生物对砷的累积规律、形态转化机制以及在人类体内代谢过程与危害性，为保护海洋生态环境、维护海洋食品安全提供科学依据。
Advances of Arsenic Contents and Different Species in Marine Organisms
- 1. Institute of Environmental Research at Greater Bay, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China;
- 2. Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China;
- 3. University of Chinese Academy of Sciences, Beijing 100049, China
- Received Date:
2019-01-16
Fund Project:
Abstract: Arsenic is a widely distributed toxic element in the marine environment. Its toxicity not only associates with the total concentration, but also depends on its chemical speciation. Marine organisms contain high concentration of arsenic; therefore they are named as “arsenic bank” of the marine environment. Based on the analysis of total arsenic and arsenic species in marine organisms worldwide, this paper summarizes the concentrations and bioaccumulation of different arsenic species in various marine organisms including seaweed, sea anemone, polychaete, shellfish, fish and other high-nutrient marine animals. In view of the current research work, it is suggested that we should conduct in-depth research on detection, sample pretreatment, standard preparation, and health effects of arsenic on organisms, in order to reveal the accumulation, transformation, and metabolic processes of arsenic in marine organisms, and provide scientific supports for marine ecological environmental conservation and food safety.
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