Patterns of the Disperse-phase Distribution of Organic Ecotoxicants in the Water of the World River Systems

IF 0.7 Q4 CHEMISTRY, ANALYTICAL Methods and Objects of Chemical Analysis Pub Date : 2022-01-01 DOI:10.17721/moca.2022.133-140

M. V. Milyukin, М.V. Gorban

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引用次数: 1

Abstract

The results of the dispersed-phase distribution of major classes of organic ecotoxicants such as organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs) and polycyclic aromatic hydrocarbons (PAHs) in the water of various river systems have been discussed in the current research. The main parameters of water quality in these river systems differ significantly. Despite this, the following constancy has been established for all studied river systems: the higher the hydrophobicity coefficient log (Ko/w) of the organic ecotoxicant, the smaller its water-soluble fraction. Relevant dependences have been established and their statistical processing has been carried out. The correlations determined are significant and reliable for most aquatic systems, with R ranging from 0.67 to 0.98 (P > 95%). It follows that the hydrophobicity coefficient of a compound is an essential parameter by which its disperse-phase distribution can be estimated. The results were almost identical for the Dnieper and Elbe rivers due to the similar physicochemical characteristics of these water systems.

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世界河流水系中有机生态毒物弥散相分布模式

本文讨论了有机氯农药(OCPs)、多氯联苯(PCBs)和多环芳烃(PAHs)等主要有机生态毒物在不同水系水体中的分散相分布情况。这些水系的主要水质参数差别很大。尽管如此，所有被研究的河流系统都有如下的一致性:有机生态毒物的疏水系数log (Ko/w)越高，其水溶性分数越小。建立了相关的依赖关系，并对其进行了统计处理。所确定的相关性对于大多数水生系统是显著和可靠的，R范围为0.67 ~ 0.98 (P < 95%)。由此可见，化合物的疏水系数是估计其色相分布的重要参数。第聂伯河和易北河的结果几乎相同，因为这些水系具有相似的物理化学特征。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Methods and Objects of Chemical Analysis CHEMISTRY, ANALYTICAL-

CiteScore

1.00

自引率

14.30%

发文量

期刊介绍： The journal "Methods and objects of chemical analysis" is peer-review journal and publishes original articles of theoretical and experimental analysis on topical issues and bio-analytical chemistry, chemical and pharmaceutical analysis, as well as chemical metrology. Submitted works shall cover the results of completed studies and shall make scientific contributions to the relevant area of expertise. The journal publishes review articles, research articles and articles related to latest developments of analytical instrumentations.