Scientific Research and Essays

  • Abbreviation: Sci. Res. Essays
  • Language: English
  • ISSN: 1992-2248
  • DOI: 10.5897/SRE
  • Start Year: 2006
  • Published Articles: 2768

Full Length Research Paper

Quality of water from dug wells and the lagoon in Lagos Nigeria and associated health risks

B. A. Adelekan1* and O. A. Ogunde2
1Department of Agricultural Engineering, Federal College of Agriculture, Institute of Agricultural Research and Training (IAR&T), PMB 5029, Moor Plantation, Ibadan, Oyo state, Nigeria. 2Department of Agricultural and Mechanical Engineering, College of Engineering and Environmental Studies, Olabisi Onabanjo University, PMB 5026, Ibogun, Ogun state, Nigeria.
Email: [email protected]

  •  Accepted: 10 January 2012
  •  Published: 31 March 2012


The aim of this research work was to assess the quality of the water from dug wells and lagoon in Lagos, Nigeria, ascertain the contamination problems that may confront the consumers, determine the health risks and suggest appropriate remedies. Twenty (20) dug wells were randomly selected in Oworonshoki area of Lagos and water samples were collected during July to August 2010. The samples were checked for odour, colour and taste and these largely satisfied consumer preferences. Physico-chemical analyses were conducted to determine the concentrations of pH, total solids, total hardness, Cl, SO4, NO3, Mg, Ca, Mn, Na, Cu, Zn, Fe and Pb, while microbiological analyses were done to assess the levels of total viable count, total coliform count, faecal coliform count and faecal streptococci count. Most of the samples met WHO guideline values for these parameters, although the pH values were outside the recommended range. Maggots and entero bacteria were found in several well and lagoon samples thus confirming certain health risks associated with these samples. This study recommends that various states in Nigeria create agencies which can be effective in monitoring private water wells from a public health stand point and compel adherence to regulations on the part of the owners.


Key words: Dug wells, lagoon, water, physico-chemical analyses, microbial analyses.