𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Heavy Metals in Saale Sediments— Changes in the Contamination since 1991

✍ Scribed by Zerling, Lutz ;Hanisch, Christiane ;Junge, Frank W. ;Müller, Ansgar

Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
604 KB
Volume
31
Category
Article
ISSN
0323-4320

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Based on the hydrographical and geological conditions of the river Saale catchment area, the regional geogenic background values are given for heavy metals in fluviatile sediments. They serve as a yardstick for evaluating the current sediment load of the Saale. Compared with the data from the 1990s, level reductions in the Saale can only be proven for the main contaminants Hg and Cr. By contrast, heavy metal levels in the formerly highly contaminated Weiße Elster river basin have clearly decreased, in particular Cd, Zn, Ag, and U. At the same time, increased manganese levels throughout the river system indicate a reduction in organic loads and an increase in oxygen levels.

📜 SIMILAR VOLUMES

Changes in the flux of sediment in the U
Changes in the flux of sediment in the Upper Murrumbidgee catchment, Southeastern Australia, since European settlement
✍ Jon M. Olley; Robert J. Wasson 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 384 KB

## Abstract Since European settlement began 180 years ago, the sediment flux in the upper Murrumbidgee River, NSW, Australia, has changed as a result of grazing, historical climate variations, and dam closures. Of these, the introduction of grazing stock, which triggered widespread gully erosion, h

Evaluation of a sequential extraction pr
Evaluation of a sequential extraction procedure for the speciation of heavy metals in sediments
✍ Christine M. Davidson; Rhodri P. Thomas; Sharon E. McVey; Reijo Perala; David Li 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 808 KB

The three-stage sequential extraction procedure for speciation of heavy metals, proposed by the Commission of the European Communities Bureau of Reference (BCR), has been applied to a freshwater sediment collected from the River Clyde, Lanarkshire, UK . Initial studies were carried out using flame a