Environmental health determination and assessment of physico-chemical characteristics in Oloshi River, Nigeria
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Date
2017
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Publisher
FTST
Abstract
The Physico-chemical characteristics of the surface waters and sediment in Oloshi River, non-tidal fresh water
were studied between July and December 2015. The Oloshi River drains and receives effluents from cassava mill
treatment (starch mill) factory and oil companies in the area. The inhabitants are predominantly farmers and
fishermen. All parameters were analyzed using standard methods for examination of water and waste water
(ALPHA 1998). The results of water and sediment physico-chemical parameter lies between a mean range of 4.2-
4.4 for pH, 28.5°C for temperature, 1.4-4.8 NTU for conductivity, 1.4 – 4.9 NTU for turbidity, 3.9 – 4.4 ppm for
Po4, 0.2 – 1.2 for No3, BOD= 1.1 ppm. The results showed low physico-chemical levels which do not pose serious
health risk except for phosphate levels with a range of 3.89 to 4.4 ppm. With regard to seasonal variation, dry
season recorded higher values than rainy season except for pH and No3 of the sediment parameter in which the
rainy season recorded higher than dry season. Increased level of pollutants in the Oloshi River may have
significant effect on the ecological balance of the River.
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Keywords
Anthropogenic, Assessment, Environmental Health, Eutrophication, Nigeria, Physical Chemistry, Oloshi River