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The Big River, Co Louth, Ireland: a case study in recovery

Published online by Cambridge University Press:  15 August 2009

D. J. Douglas  and
J. McCreanor
D. J. Douglas
Affiliation:
Dept. of Experimental Sciences, Regional Technical College, Dundalk, Co. Louth, Ireland
J. McCreanor
Affiliation:
Dept. of Experimental Sciences, Regional Technical College, Dundalk, Co. Louth, Ireland
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Abstract

Results of analysis of the chemical and biological effects of organic wastes, from the Cooley Alcohol Factory, onthe water quality of the Big River, Co. Louth, during the March/April period - from 1983 to 1986 - showed the riverto be grossly polluted downstream of the factory outfall - being devoid of living organisms, with the exception of sewagefungus. When the factory ceased production in June 1986, water quality showed an immediate improvement and withineight months significant signs of recolonisation, by macroinvertebraies, were evident.Water quality continued to improve until the end of the survey in March 1988, when the river returned to near pristineconditions.

Keywords

PollutionRecoveryMacroinvertebratesQuality IndexPollutionguérisonmacroinvertébrésindice de qualité
Type
Research Article
Information
Annales de Limnologie - International Journal of Limnology , Volume 26 , Issue 1 , 1990 , pp. 73 - 79
Copyright
© Masson, 1990

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