Estimation of mercury-sulfide speciation in sediment pore waters using octanol-water partitioning and implications for availability to methylating bacteria

被引：116

作者：

Benoit, JM

Mason, RP

Gilmour, CC

机构：

[1] Univ Maryland, Chesapeake Biol Lab, Ctr Environm Studies, Solomons, MD 20688 USA

[2] Natl Acad Sci, Estuarine Res Ctr, St Leonard, MD 20685 USA

来源：

ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY | 1999年 / 18卷 / 10期

关键词：

mercury; methylmercury; partitioning; bioavailability; methylation;

D O I：

10.1002/etc.5620181004

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The octanol-water partioning of inorganic mercury decreased with increasing sulfide, supporting a model that predicts decreased fractions of neutral Hg-S species with increasing sulfide. These results help explain the decreased availability of Hg to methylating bacteria under sulfidic conditions, and the inverse relationship between sulfide and methylmercury observed in sediments.

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收藏

页码：2138 / 2141

页数：4

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