[主要重金属（汞、铅、镉）残留的环境污染与毒理学评估]

[Environmental pollution and toxicological assessment of major heavy metal (mercury, lead, cadmium) residues].

作者信息

Kühnert M

出版信息

Arch Exp Veterinarmed. 1980;34(3):339-45.

Abstract

Correlations are elucidated between contamination of feedstuffs and animal-based foodstuffs as well as crops, with reference being made to pollution of the environment by and residualisation of mercury, lead, and cadmium compounds. Yet, necessary provisions regarding toxicological indices of residues of relevant metals in feed and food should make allowance also for unavoidable pollution of the environment by the toxic agent concerned. Orientation to what is called "normal" or background values in the ecosystem is absolutely essential to any assessment of metallic residues. The proposed WHO tolerances, in the context of animal-based foodstuffs, are 0.1 ppm maximum for mercury and cadmium and 0.5 ppm for lead. However, possible presence of all three toxic agents in one given food item has been left unconsidered in that tolerance proposal.

摘要

阐述了饲料、动物性食品以及农作物污染之间的相关性，并提及汞、铅和镉化合物对环境的污染及残留情况。然而，关于饲料和食品中相关金属残留的毒理学指标的必要规定，也应考虑到相关有毒物质对环境不可避免的污染。对于任何金属残留评估而言，以生态系统中所谓的“正常”或背景值为导向绝对至关重要。在动物性食品方面，世界卫生组织提议的耐受量为汞和镉最高0.1 ppm，铅为0.5 ppm。然而，该耐受量提议未考虑同一种食品中可能同时存在这三种有毒物质的情况。