IMPACT OF HUMAN ACTIVITIES ON PHYSICOCHEMICAL PARAMETERS AND NUTRIENT DISTRIBUTION IN THE SURFACE WATER OF AYETORO COMMUNITY, ILAJE, SOUTH WEST NIGERIA

  • O.A. Nubi Department of Physical and Chemical Oceanography, Nigerian Institute for Oceanography and Marine Research, Lagos,
  • O.O. Oyatola Department of Physical and Chemical Oceanography, Nigerian Institute for Oceanography and Marine Research, Lagos,
  • R.O. Oguntomesho Department of Marine Science and Technology, Federal University of Technology, Akure,

Abstract

The present study has undertaken to assess the impact of human activities on physicochemical parameters and nutrient distribution in the surface water of Ayetoro community in Ilaje area, South West, Nigeria. In the study, eight sampling sites along the river course have been chosen based on the objectives of the study and potential source of pollution. The physicochemical parameters- temperature, pH, DO, salinity, electrical conductivity (EC) and total dissolve solid (TDS) were measured in-situ using Hanna HI 9828. Nitrate (NO3-), phosphate (PO32-) and sulphate (SO42-) were determined using standards methods and procedures. These were later analyzed using UV/VIS Spectrophotometer (Model- Jenway 6705). A comparison of the measured parameters with the national and international standards set by FAO (1973), FEPA (1991) and WHO (2008). Only TDS and EC concentrations were significantly different (ANOVA, p≤0.05) across the sample stations.

Published
2019-10-06
Section
ARTICLES