Towards developing sediment quality assessment guidelines for aquatic systems: An Australian perspective
| Autor: | A. V. Arakel |
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| Rok vydání: | 1995 |
| Předmět: | |
| Zdroj: | Australian Journal of Earth Sciences. 42:335-369 |
| ISSN: | 1440-0952 0812-0099 |
| DOI: | 10.1080/08120099508728207 |
| Popis: | Sediment at the sediment‐water interface of natural and man‐made waterways forms an integral part of the ecosystem because it is affected by a continuous flux of physical, chemical and biological components between the sediment, interstitial water and the overlying water column. Aquatic sediments contain records of past and present urban and rural runoff, chemical discharges and spills. In recent years sediment quality has received increasing attention following identification of the role of sediment as both a sink for pollutants and as a contaminant source with potential impacts on the quality of receiving waters. Research has indicated that the processes leading to remobilization of contaminated sediments in upstream reaches of a waterway may, through time, exert a significant influence on water quality in the downstream reaches. This, together with the cumulative effects due to contaminant input from point and non‐point source discharges, have dramatic effects on water quality and thus on ecosystem str... |
| Databáze: | OpenAIRE |
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