The University of Southampton
University of Southampton Institutional Repository

Mercury in the river Nura and its floodplain, central Kazakhstan I: river sediments and water

Heaven, S., Ilyushchenko, M.A., Tanton, T. W., Ullrich, S. M. and Yanin, E.P. (2000) Mercury in the river Nura and its floodplain, central Kazakhstan I: river sediments and water Science of Total Environment, 260, (1-3), pp. 35-44. (doi:10.1016/S0048-9697(00)00540-4).

Record type: Article


The River Nura in Central Kazakhstan has been heavily polluted by mercury originating from an acetaldehyde plant. Mercury in the riverbed is mainly associated with power station fly ash, forming a new type of technogenic deposit. A systematic survey of the bed was carried out to establish the location, extent and nature of the contaminated sediments, and to evaluate the potential for sediment transport. The bed sediments were found to contain very high concentrations of mercury, particularly in the first 15 km downstream of the source of the pollution. Average total mercury concentrations in this section of the river are typically between 150 and 240 mg/kg, falling rapidly with increasing distance downstream. The estimated total volume of silts in the riverbed between Temirtau, the origin of the pollution, and Intumak Reservoir, located 75 km downstream, has been calculated as 463 500 m(3), containing an estimated 9.4 tonnes mercury. Forty-six percent of the total volume of contaminated silts containing almost 95% of the mercury are located in the upper 25 km of the river, however. The data clearly support the hypothesis that large quantities of polluted sediment are not transported long distances downstream but are removed from the aquatic environment in times of flood and deposited on the low-lying lands adjacent: to the river. This process, however, does not stop mercury moving further downstream in the water column. (C) 2000 Elsevier Science B.V. All rights reserved.

Full text not available from this repository.

More information

Published date: 2000


Local EPrints ID: 74706
ISSN: 0048-9697
PURE UUID: 75bdf025-ee11-46f6-a6ef-9f74e7ff32ed

Catalogue record

Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:45

Export record



Author: S. Heaven
Author: M.A. Ilyushchenko
Author: T. W. Tanton
Author: S. M. Ullrich
Author: E.P. Yanin

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton:

ePrints Soton supports OAI 2.0 with a base URL of

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.