This work is licensed under a
Creative Commons Attribution 4.0 International License
 Efe, S.I. Quality of rainwater harvesting for communities of Delta State, Nigeria. Journal of the Environment, 26(2006): 175 -181.DOI: https://doi.org/10.1007/s10669-006-7829-6
 Adebola, K. D. Groundwater Quality in Ilorin Township: An Environmental Review African Journal of Environmental Studies. 2(2) (2001): 4-6.
 Nnimmo, B. (2008).
 Ubani E.C. and I.M. Onyejekwe (2013). Environmental impact analyses of gas flaring in the Niger delta region of Nigeria Am. J. Sci. Ind. Res., 2013, 4(2): 246-252.DOI: https://doi.org/10.5251/ajsir.2013.4.2.246.252
 Anslem O. A. Negative Effects of Gas Flaring: The Nigerian Experience. Journal of Environment Pollution and Human Health, 1(1) (2013): 6-8.
 JINN, Gas Flaring in Nigeria: an Overview, Justice in Nigeria Now. April 2010. Available at www. justiceinnigerianow. org.
 McEwen, J.D. N. and Johnson, M. R. Black carbon particulate matter emission factors for buoyancy driven associated gas flares. J. Air. Waste Manage. Assoc., 62(3) (2010): 307-321.DOI: https://doi.org/10.1080/10473289.2011.650040
 Efe, S. I. An Appraisal of the Quality of Rain and Groundwater in Nigerian City. A Case Study of Warri Metropolis. A Ph. D Seminar Paper Presented to the Department of Geography and Regional Planning, Delta State University, Abraka, (2000), 1- 19.
 Walk, M.F., and Godfrey, P. J. Effects of Acid Deposition on Surface Water, Journal Of New England Water Works Association, 104 (4) (1990): 248 – 251.
 Buchannan RE, Gibbon NE. Bergy's Manual of Determinative Bacteriology. Williams and wilkins Co.: Baltimore, U.S.A. (1974).
 Environmental Guidelines and Standards for the Petroleum industry in Nigeria, EGASPIN. Environmental Guidelines and Standards for the Petroleum industry in Nigeria. Department of Petroleum Resources, Lagos. (2002).
 Amadi, A.N., Olashjnde, P.I., Yisa, J., Okosun, E.A., Nwankwoala, H. O and Alkali, Y.B. Geostatistical Assessment of Groundwater Quality from coastal aquifers of Eastern Niger Delta. Nigeria. J. Geo., 2(3) (2012): 51- 59.DOI: https://doi.org/10.5923/j.geo.20120203.03
 World Health Organization, WHO. pH in Drinking Water. Published in Guidelines for Drinking water quality 2nd edition, vol. 2. WHOGeneva. (2003).
 Federal Ministry of Environment National Guidelines and Standards for water Quality in Nigeria, FMENG&S (1991).
 Nwankwoala, H.O. Hydrochemical and Suitability Evaluation of Groundwater in Bonny Island, Eastern Niger Delta. African J. Basic and Appl. Sci., 3(6) (2011): 271 –277.
 Chikere BO and Okpokwasili GC, seasonal dynamics of the pollution in a niger delta river receiving pharmaceutical effluents. Trop. Freshw. Bio. 11(2002): 11-22.DOI: https://doi.org/10.4314/tfb.v11i1.20865
 Hageskal, G.; Lima, N.; Skaar, I. The study of fungi in drinking water. Mycol. Res. (2009), 113, 165–172.DOI: https://doi.org/10.1016/j.mycres.2008.10.002
 Douterelo, I.; Boxall, J.B.; Deines, P.; Sekar, R.; Fish, K.E.; Biggs, C.A. Methodological approaches for studying the microbial ecology of drinking water distribution systems. Water Res., 65 (2014): 134–156.DOI: https://doi.org/10.1016/j.watres.2014.07.008
 Besner, M. -C.; Prévost, M. and Regli, S. Assessing the public health risk of microbial intrusion events in distribution systems: Conceptual model, available data, and challenges. Water Res. 45 (2011): 961–979.DOI: https://doi.org/10.1016/j.watres.2010.10.035
 Anaissie, E.J.; Kuchar, R.T.; Rex, J.H.; Francesconi, A.; Kasai, M.; Muller, F.M.; Walsh, T.J. Fusariosis associated with pathogenic Fusarium species colonization of a hospital water system: A new paradigm for the epidemiology of opportunistic mold infections. Clin. Infect. Dis., 33 (2001).DOI: https://doi.org/10.1086/324501