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Distribution of Iron content in Urban Groundwater, Southeastern Brazzzaville, Congo

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Author Affiliations

  • 1Department of Exact Sciences, E.N.S, University Marien Ngouabi, P.O. Box 69 Brazzaville, R CONGO
  • 2 Department of Natural Sciences, E.N.S, University Marien Ngouabi, P.O. Box 69 Brazzaville, CONGO

Int. Res. J. Biological Sci., Volume 3, Issue (12), Pages 16-23, December,10 (2014)

Abstract

Iron content associated with pH values and temperature of groundwater samples has been assessed in rainy (March 2013) and dry (July 2013) seasons in this study using standards methods. The mean variance skewness and kurtosis of pH and iron content were calculated and show that they exhibit an asymmetric distribution which characterizes a non-uniform distribution. This suggests that many chemical processes could control the groundwater quality. The mean of pH values (4.07±0.91 in rainy season and 5.08±0.86 in dry season) characterizes an acidic nature of the groundwater. The iron contents in some groundwater samples higher than 0.3 mg/L can be considered as contributors to deteriorating groundwater quality from both natural and anthropogenic sources. In view of these features, regular monitoring of groundwater quality in the study area is required to protect people against polluted groundwater.

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