Prediction of principal metal binding solid phases in estuarine sediments from color image analysis

被引：23

作者：

Bull, DC ^{[1
]}

Williamson, RB ^{[1
]}

机构：

[1] Natl Inst Water & Atmospher Res, Hamilton, New Zealand

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 2001年 / 35卷 / 08期

关键词：

D O I：

10.1021/es0015646

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A novel application of image analysis technology to the semiquantitative determination of the strong metal-binding phases of hydrous ferric oxides and acid-volatile sulfides in muddy estuarine sediments is presented. Sediment cores were split in the laboratory, photographed in cross-section, and subsampled for solid-phase analyses. The images were processed using commercially available software packages. Concentrations of FeOOH and AVS were found to he linearly related to elementary color parameters (saturation and intensity, respectively) at corresponding points on the images. Spatially resolved information on metal-binding capacity can thereby be estimated from such images; selected depth profiles are generated as examples.

引用

页码：1658 / 1662

页数：5

共 29 条

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