Estimating Koc for persistent organic pollutants:: limitations of correlations with Kow

被引：43

作者：

Baker, JR

Mihelcic, JR ^{[1
]}

Shea, E

机构：

[1] Michigan Technol Univ, Dept Civil & Environm Engn, Houghton, MI 49931 USA

[2] Princeton Univ, Dept Civil Engn, Princeton, NJ 08544 USA

来源：

CHEMOSPHERE | 2000年 / 41卷 / 06期

基金：

美国国家科学基金会;

关键词：

persistent; bioaccumulation; partition coefficient; K-oc; POPs;

D O I：

10.1016/S0045-6535(99)00550-0

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The n-octanol/water partition coefficient (K-ow) is commonly used to predict the soil or aquatic particle water partition coefficient normalized to organic carbon (K-oc). Many correlations are available covering several chemical classes and ranges of hydrophobicity. This work indicates the K-ow may not be a strong predictor for persistent organic pollutants (POPs) which are defined here as chemicals with logK(ow) > 5.0. In addition, the correlation developed in this work for POPs will still result in a predicted value which is of by a factor of 15. Accordingly, care must be taken when applying K-oc estimations using K-ow for POPs until more suitable correlations are developed. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：813 / 817

页数：5

共 36 条

[11] Irreversible sorption of neutral hydrocarbons to sediments: Experimental observations and model predictions [J].