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Geophysical and physiochemical investigations were carried out along Lagos-Badagry Expressway, Southwest, Nigeria on three locations dominated by highway runoff, with a view to monitoring the effect of highway runoff on nearby groundwater. The locations were: Iyana Isashi, Iyana Era and Agbara. An overview of the subsurface resistivity distribution was achieved employing Vertical Electrical Sounding (VES) using Schlumberger array and Two-dimensional (2D) resistivity imaging (Wenner array). The ABEM Terrameter SAS 1000 was used for both VES and 2D resistivity surveys and the data were analysed using IPI2win and RES2DINV, respectively. The VES results showed up to four geoelectric layers consisting of sand, clayey sand, clay and sandy soils. The resistivity at Agbara was found varying from 3.52 Ωm - 11 Ωm. This low resistivity value showed a high level of infiltration of highway runoff into the subsurface, thereby causing contamination of the groundwater. Iyana Isashi and Iyana Era have a relatively moderate resistivity values ranging from 103 Ωm to 178 Ωm. Physiochemical analysis of groundwater samples collected at the study locations revealed high electrical conductivity, total dissolved solids and pH values. The results of the borehole sample taken at 32 m away from the profile point at Agbara produced higher values of electrical conductivity and total dissolved solids than those of other locations, hence validating the electrical resistivity surveys, indicating that the groundwater sample from the survey point at Agbara is contaminated.
Benson CH, Chiang I, Chalermyanont T, Sawangsuriya A. Estimating van Genuchten parameters α and n for clean sands from particle size distribution data. In Iskander M, Garlanger JE, Hussein MH, (Eds), from soil behaviour fundamentalis to innovations in geotechnical engineering. ASCI, Geotechnical s.ed. 2014;233.
Yonge D, Hossain DH, Barber FH, Chen PB, Griffin D. Wet detention pond design for highway runoff pollutant control. National Cooperative Highway Research Program Report; 2002.
Patrick L. Mercury toxicity and antioxidants: Part 1: Role of glutathione and alpha-lipoic acid in the treatment of mercury toxicity. Altern Med Rev. 2002; 7(6):456–471.
Irish LB, Barrett ME, Malina JF, Charbeneau RJ. Use of regression models for analyzing highway storm-water loads. Journal of Environmental Engineering. 1998;124(10):987–993.
Barbosa AE. Highway runoff pollution and design of infiltration ponds for pollutant retention in semi-arid climates. Ph.D. Thesis, Environmental Engineering Laboratory, Aalborg University; 1999.
Pitt R, Field RM, Lalor HG, Brown M. Urban storm water toxic pollutants: Assessment sources and treatability. Water Environ. Res. 1995;67:260-275.
Ariyo SO, Omosanya KO, Oshinloye BA. Electrical resistivity imaging of contaminant zone at Sotubo dumpsite along Sagamu- Ikorodu Road, South-western Nigeria. African Journal of Environmental Science and Technology. 2013;7:312–320.
Ellis JB, Revitt DM. Drainage from roads: Control and treatment of highway runoff. Report NRA, 43804/MID OR, Thames NRA, Reading; 1991.
Dwight RH, Jan CS, Dean BB, Betty HO. Association of urban runoff with coastal water quality in orange county, California. Water Environ. Res. 2002;74:82-90.
Perdikaki K, Mason CF. Impact of road runoff on receiving streams in Eastern England. Water Res. 1999;33:1627- 1633.
Driscoll ED, Shelley PE, Strecker EW. Pollutant loadings and impacts from highway stormwater runoff — Volume III: Analytical investigation and research report. FHWA-RD-88-008. Federal Highway Administration, Office of Research and Development, McLean, VA; 1990.
Grenato GE, Smith KP. Estimating concentrations of road-salt constituents in highway runoff from measurements of specific conductance. U.S. Geological Survey Water Resources Investigation Report. 1999;99-4077:22.
Marsalek JB, Brownlee T, Mayer S, Lawal, Larkin GA. Heavy metals and PAHS in stormwater runoff from the Skyway Bridge, Burlington, Ontario. Water Qual. Res. J. Can. 1997;32:815-827.
Mangani GA, Berloni F, Bellucci F, Tatano, Maione M. Evaluation of the pollutant content in road runoff first flush waters. Water Air Soil Pollution. 2005;160:213-228.
Barrett MR, Zuber E, Collins J, Malina JR, Ward G. A review and evaluation of literature pertaining to the quantity and control of pollution from highway runoff and construction. Centre for Research in Water Resources, Bureau of Engineering Research, University of Texas, Austin, TX; 1993.
Backstrom KI, Auken E, Christensen N, Pellerin L. An integrated approach for hydro geophysical investigations: New technologies and a case history. In: Bulter DK (ed) Near-surface Geophysics. Society of Exploration Geophysicists, Tulsa, USA. 2003;585–597.
Loke MH. Electrical imaging surveys for environmental and engineering studies. A practical guide to 2-D and 3-D survey, Geotom Software, Malaysia; 1999.
Nton ME. Sedimentological and physio-chemical studies of rock units in the eastern; 2001.
Alabi AA, Bello R, Ogungbe AS, Oyerinde HO. Determination of ground water potential in Lagos State University, Ojo using Geoelectric methods (vertical electrical sounding and horizontal profiling). 2010;2(5):12.
Odumosu T, Balogun Y, Ojo K. Lagos state in maps. Rex Charles publication. Ibadan; 1999.
Iwugo KO, D’Arcy B, Andoh R. Aspects of land-based pollution of an African coastal megacity of Lagos. Proceedings of the International Specialized IWA Conference, Dublin, Ireland; 2003.
WHO. Guidelines for drinking-water quality: Fourth edition incorporating the first Addendum; 2007.
Fondriest KH. Contamination assessment of surface and groundwater within and around two dumpsites. International Journal of Environmental Science and Technology. 2018;7(2):367–376.
United States Geological Survey: Science for changing the world; 2018.
WHO. Guidelines for drinking-water quality. Recommendations. 3rd edition, WHO Geneva. 2004;1.
United States Environmental Protection Agency (USEPA), Erosion, Sediment and Runoff Control for Roads and Highways. Washington, D.C.: Office of Water, U.S. Environmental Protection Agency; 1995.