1. Akiti, T.T. 1982. Nitrate levels in some granitic aquifers from In: Ola SA (ed) Tropical soils of Nigeria in engineering Ghana. Proc. Intern. Symp. on Impact of Agricultural practise, Balkema, Rotterdam, pp.39-58. Activities on Groundwater, IAH Mem. XVI, Part 1, Rahaman, M.A. 1989. Review of the basement geology of pp. 87-98. southwestern Nigeria. In: Kogbe CA (ed) Geology of
2. Colvin, C. 1999. Increased risk of methaemoglobinaemia as Nigeria, 2nd edition, Elizabethan Publ., Jos, pp.39-56. a result of bottle-feeding by HIV positive mothers inTerblanche, A.P.S. 1991. Health hazards of nitrate in drinking South Africa. Paper presented at IAH Congress 1999, water. Water SA 17 (1): 77-82. Bratislava, Slovakia. Tredoux, G., Tama, A.S. & Engelbrecht, J.F.P. 2000. The
3. Edet, A.E. 2000. Water pollution by nitrate near some waste increasing nitrate hazard in groundwater in the rural areas. disposal sites in Calabar (Nigeria). Groundwater 2000. Paper presented at Water Institute, S. Afr. Conference, Proc. Int. Conf. Groundwater research, Copenhagen, 6-8 May, Sun City. June 2000, pp.239-240. Tredoux, G., Engelbrecht, J.F.P. & Tama, A.S.2001. Nitrate
4. Naturally High Nitrate Concentrations in Groundwaters from the Sahel