Electrical Investiagtion of Ground Water Pollution in Dumpsites at Awka, Anambra State


Authors : Prof. K. R. E. Okoye

Volume/Issue : Volume 5 - 2020, Issue 6 - June

Google Scholar : http://bitly.ws/9nMw

Scribd : https://bit.ly/2Zl1BVZ

Abstract : The purpose of the study was to investigate the ground water pollution in dumpsites. It was an experimental study. Samples were randomly collected from dumpsites at recognized location. In March, 2019, duplicate samples were also collected from each of the sampling stations. The samples were kept in sterile containers. The containers were labeled accordingly. At the occurrence of precipitation, samples containing rainy weather were collected in a sterile sample bottle. The samples were carried from the sites to the laboratory in an ice box which contained packs of frozen ice. The Wenner array together with Campus tiger model resistivity was used to measure the six electrical resistivity imaging lines. The range of the electrode is between 5 to 35m with a station interval of 5m. The programme RES2DIN was used to invert the apparent resistivity data in order to get true two dimensional resistivity distribution in the surface. This was followed by the plotting and construction of the topographic map of the area at 5m elevation interval. The findings of the study indicated that the refuse dumpsite has a pattern of resistivity variations on the surface. The resistivity values were carried by solid wastes, leachate and underlying weathered profile resulting in ground water pollution. Among others, it was recommended that law enforcement agents in the state should ensure that market and domestic wastes are not dumped indiscriminately.

Keywords : Electrical Investigation, Dumpsite, Ground Water, Pollution.

The purpose of the study was to investigate the ground water pollution in dumpsites. It was an experimental study. Samples were randomly collected from dumpsites at recognized location. In March, 2019, duplicate samples were also collected from each of the sampling stations. The samples were kept in sterile containers. The containers were labeled accordingly. At the occurrence of precipitation, samples containing rainy weather were collected in a sterile sample bottle. The samples were carried from the sites to the laboratory in an ice box which contained packs of frozen ice. The Wenner array together with Campus tiger model resistivity was used to measure the six electrical resistivity imaging lines. The range of the electrode is between 5 to 35m with a station interval of 5m. The programme RES2DIN was used to invert the apparent resistivity data in order to get true two dimensional resistivity distribution in the surface. This was followed by the plotting and construction of the topographic map of the area at 5m elevation interval. The findings of the study indicated that the refuse dumpsite has a pattern of resistivity variations on the surface. The resistivity values were carried by solid wastes, leachate and underlying weathered profile resulting in ground water pollution. Among others, it was recommended that law enforcement agents in the state should ensure that market and domestic wastes are not dumped indiscriminately.

Keywords : Electrical Investigation, Dumpsite, Ground Water, Pollution.

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