NDLI: Sediment quality assessment and dispersion pattern of toxic metals from brewery effluent discharged into the Olosun river, Nigeria

Content Provider	Springer Nature Link
Author	Ipeaiyeda, Ayodele Rotimi Onianwa, Percy Chuks
Copyright Year	2016
Abstract	Sediment quality assessment of the Olosun river due to input from brewery effluent was investigated. Heavy metal components, organic carbon, and grain size properties of the sediments were used to determine the extent of contamination by brewery effluent. Sediment metal loadings at the effluent discharge points were generally not remarkable based on the comparison with the sediment quality guideline. Concentrations of Ni, Zn, Cr, Co, Cu, Cd and Pb at the discharge point were 10.4 ± 7.4, 118 ± 70, 24.8 ± 9.2, 6.8 ± 1.7, 12.7 ± 7.1, 0.35 ± 0.10 and 11.4 ± 4.7 mg/kg, respectively. There were, however, marked differences in the levels of Ni, Zn and Co between the downstream sediment and the natural background. This comparison of the characteristics of the contaminated downstream sediments to upstream sediment revealed anthropogenic input on the river traceable to the effluent input. Pollution load index of 1.53 is obtained indicating deterioration of the Olosun river sediment quality. Results of principal component analysis corroborated the effluent input as the major source of metals contamination of the sediment. A regression model was developed for each metal investigated expressing the metal concentration as a function of distance from the discharge point. The model related the observed metal concentrations with predicted metal concentrations, and described the dispersion pattern of the metals in the Olosun river sediment with R $^{2}$ varying from 0.9360 (Cu) to 0.9999 (Cr). The proposed regression equations find relevance in the quest for sediment quality planning and pollutant’s prediction.
Starting Page	1
Ending Page	12
Page Count	12
File Format	PDF
ISSN	18666280
Journal	Environmental Earth Sciences
Volume Number	75
Issue Number	4
e-ISSN	18666299
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-02-11
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Sediment Industrial effluent Principal component analysis Regression model Recovery capacity Heavy metal Geology Hydrology/Water Resources Geochemistry Environmental Science and Engineering Terrestrial Pollution Biogeosciences
Content Type	Text
Resource Type	Article
Subject	Global and Planetary Change Earth-Surface Processes Soil Science Environmental Chemistry Pollution Geology Water Science and Technology

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