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从饮食中的生物积累试验中评估具有生物放大因子的生物积累

Frank A P C Gobas¹, Nicole M Berg¹, Aaron D Redman²

¹School of Resource and Environmental Management, Simon Fraser University, Burnaby, BC, Canada.

Integrated environmental assessment and management

|January 13, 2025

概括

生物度因子 (BCF) 不足以评估鱼类中的污染物生物放大. 这项研究强调了生物放大因子 (BMF) 和饮食生物积累测试对于准确评估北极生态系统风险的重要性.

科学领域:

环境化学环境化学
生态毒理学生态毒理学
北极研究研究北极研究

背景情况:

联合国斯德哥尔摩公约承认,持久性有机污染物 (POP) 对北极生态系统和土著社区的风险.
传统食品来源中的污染物的生物放大构成重大威胁.
目前,衡量从水中吸收的生物度因子 (BCF) 优先于评估食物转移的生物放大因子 (BMF).

研究的目的:

在生物积累评估中评估生物放大因子 (BMF) 的实用性.
调查鱼类中各种物质的BCF和BMF之间的相关性.
探索计算方法来从饮食生物积累数据中推导BMF和BCF.

主要方法:

汇编了来自不同物质的鱼类饮食和水中生物积累研究的数据.
在同一种鱼类中分析经验BCF和BMF值之间的相关性.
从饮食生物积累测试结果中推导BMF和BCF的计算方法的评估.

主要成果:

经验证实BCF和BMF之间的相关性对于全面的生物积累评估具有有限的有用性.
饮食生物积累测试结果是有效的初步生物积累查.
该研究提供了证据支持BMF和BCF的联合使用,以评估生物积累潜力.

结论:

仅仅依靠BCF是不足以理解水生食物网中的污染物生物放大.
生物放大因子 (BMF) 对于准确评估持久性有机污染物的风险至关重要.
将食生物积累数据和BMF与BCF相结合,为环境风险评估提供了更强大的方法.

关键词:

生物积累的生物积累生物度的生物度生物放大生物放大持久性有机污染物持久性有机污染物获得奖杯的转移.

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