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1 2011

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Statistical approach to assessing groundwater pollution from gasworks

Kołwzan B., Kołwzan W., Dziubek A. M., Pasternak G.

Environment Protection Engineering

2011

Vol. 37, nr 1

119-126

The primary objective of this work was to ascertain the effectiveness of the Microtox system in assessing the quality of groundwater polluted with by-products of coal pyrolysis. Another major objective was to investigate how biological treatment contributes to the change in water toxicity. Making use of the results of toxicological instrumental analyses, as well as of statistical methods, attempts were also made to specify which particular compound is the main contributing factor in the toxicity of water. When used for assessing the progress of the treatment process, the Microtox test proved very useful for application in the treatment of groundwater polluted by gasworks. The results obtained with this test have provided a reliable description of the course of the technological process, which can be efficiently corrected owing to a quick availability of the results of toxicological analysis. Another benefit offered by the Microtox test is that the use of statistical methods makes it possible to decide which of the compounds being components of the mixture is responsible for the toxicity of an environmental sample.