Greener Journal of Physical Sciences Vol. 3 (4), pp. 115-130, May 2013.
ISSN: 2276-7851 © 2011 Greener Journals
Manuscript Number: 031113520
Ionic Abundance and Distributions in Groundwater Systems: A Case Study
Department of Geology, College of Natural and Applied Sciences,University of Port Harcourt,Nigeria.
Email:nwankwoala_ho @ yahoo. com
evaluation of ionic abundance in groundwater systems in Port
Harcourt City, Southern Nigeria
was carried out. Thirty two (32) groundwater samples were
for their physical and chemical properties. The average
temperature of the groundwater samples is 29oC.
The water is slightly acidic with pH values ranging from
4.28 – 7.72 while Eh ranges between 26.44 to 197mV.
Electrical Conductivity (EC) values ranges from 28µS/cm to
717.40µS/cm. Elevated EC values in some locations are
indicative of high ionic activities as well as salinity and
suggest possible pollution of groundwater. Chloride
concentrations in some boreholes are up to 710mg/l, which
shows saltwater encroachment at those locations. The Total
Dissolved Solids (TDS) ranges from 12.60mg/l – 401mg/l,
respectively. Besides pH, Fe, TDS and EC (in some
locations), all other parameters fall within the WHO
desirable and maximum permissible limits for drinking and
other purposes. Thus, the groundwater in the area is low in
dissolved constituents, soft and acidic. When treated for
pH, Fe2+, Mn, Zn, Cu, and Pb, in the locations
affected, the water would be suitable for domestic purposes.
The analytical results show the abundance of the ions in the
following order: Mg > Ca > Na > K
Key Words: Groundwater quality, Ionic ratio, Hydro-geochemistry, Saltwater intrusion.