Seasonal Variations in Physicochemical and Nutrient Water Quality of River Tano in Ghana
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Date
2020-01-06
Journal Title
Journal ISSN
Volume Title
Publisher
Springer International Publishing
Abstract
Increasing anthropogenic activities within the catchment of River Tano continues to threaten the river water
quality but data is limited. Seasonal variations in some physicochemical and nutrients water quality parameters of River Tano
were studied between November, 2016 and October, 2017 using electrometric and standard methods. The objective was to
assess changes in physicochemical parameters and nutrient concentrations with the season and to generate useful information
for water quality managers and policy makers to ameliorate the problem. The results showed significantly higher rainy season
values for all the nutrients and the physicochemical parameters studied. The source of River Tano recorded pH levels lower
than WHO minimum permissible level for both seasons but got corrected after 7.2 km from the source. The river was also
challenged in terms of colour (61.0±4.6 NTU), total phosphorus content (0.376±0.3 mg/L), total suspended solids (69.7±24
mg/L), turbidity (96.2±21 mg/L) and electrical conductivity (252±33 μS/cm) since the levels of these parameters exceeded the
permissible levels for WHO. Some physicochemical parameters and nutrients correlated strongly to indicate a possible
common source to the water body. Cluster analysis extracted two clusters of the seasonal sampling sites for physicochemical
parameters and three clusters for nutrients also confirming their respective possible common sources to the river. It is
recommended that the buffer zone policy must be enforced to avert further deterioration of the river water quality. Industries
must be compelled to treat their effluent before discharging into water bodies
Description
An article published by Springer International Publishing and also available at doi: 10.11648/j.ijec.20200401.11
Keywords
Freshwater,, Physicochemical,, Nutrient,, Seasonal Variations,, River Tano
Citation
Jackson Adiyiah Nyantakyi, Bernard Fei-Baffoe, Osei Akoto. Seasonal Variations in Physicochemical and Nutrient Water Quality of River Tano in Ghana. International Journal of Environmental Chemistry. Vol. 4, No. 1, 2019, pp. 1-12. doi: 10.11648/j.ijec.20200401.11