Rainwater Quality Assessment in Obio/Akpor LGA of River State Nigeria

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Author(s) Egwuogu C.C | Okeke H.U | Emenike H.I | Abayomi T.A
Pages 374-381
Volume 5
Issue 8
Date August, 2016
Keywords Gis, Rainwater Quality, Water, Interpolation
Abstract

The study of rainwater quality was carried out in Obio/Akpor Local Government Area, Rivers State, Nigeria. Free fall rainwater and their sample station coordinate values were collected from seven stations in the study area and analyzed to investigate its quality within the region. Six water quality parameters were considered and analyzed in the laboratory using specified standard method for each rainwater sample. The laboratory results were compared to permissible water quality level as recommended by World Health Organization and interpolated using the IDW algorithm. The comparative parameters analyzed shows that rainwater samples collected were within the permissible limit except for pH which was slightly acidic while the interpolated distribution shows variation in spatial distribution of the different parameters. The low pH found in the samples indicates a possible high presence of CO2 in the atmosphere since the presence of Nitrogen Oxides and Sulphur dioxide would have made it more acidic.

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