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Hasse diagram technique as exploratory tool in sediment pollution assessment

Authors

  • Stefan Tsakovski,

    Corresponding author
    1. Faculty of Chemistry, University of Sofia ‘St. Kl. Okhridski’, Sofia, Bulgaria
    • Faculty of Chemistry, University of Sofia ‘St. Kl. Okhridski’, 1, J. Bourchier Blvd., 1164 Sofia, Bulgaria.
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    • Chair of Analytical Chemistry.

  • Vasil Simeonov

    1. Faculty of Chemistry, University of Sofia ‘St. Kl. Okhridski’, Sofia, Bulgaria
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Abstract

The present paper deals with the presentation of a new approach in sediment quality estimation. This approach studies the ranking toward ecotoxicity of lake sediment samples from Turawa Lake in Poland with respect to chemical pollutants such as polychlorinated biphenyls (PCBs), pesticides, polyaromatic hydrocarbons (PAH) and heavy metals. The sediment quality estimation is done by combining Hasse diagram technique (HDT) with self-organized maps (SOM). The classification abilities of SOM are used as preprocessing procedure of the initial data matrix before applying HDT. The Hasse diagram analysis shows two specific sediment pollution ‘patterns’. The Hasse diagram structure is discussed in relation to the environmental management of Turawa Lake region. Copyright © 2011 John Wiley & Sons, Ltd.

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