Geophysical and Hydro-Chemical Investigations of Oke Asunle Dumpsite in Ile-Ife, Southwestern Nigeria for Subsoil and Surface Water Pollution.

The color rating fell within the World Health Organization (WHO) and the Nigeria Industrial Standard (NIS) acceptable limit of 15 and with the exception of water sample 3, showed a decreasing trend as the distance from the waste dumpsite increased ( Figure 8 ). 19 , 20 For turbidity, all the samples showed higher values (5.91 – 10.33 nephelometric turbidity unit) than the standard threshold of 5 ( Table 2 ).

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