Adamu, C., Nganje, T. N., & Edet, A. (2015). Heavy metal contamination and health risk assessment associated with abandoned barite mines in Cross River State, southeastern Nigeria. Environmental Nanotechnology Monitoring and Management,3, 10–21.
Google Scholar
Agency for toxic substances & Disease Registry (ASTDR). (2018). Toxicological Profile for hazardous substances. Atlanta, GA: US Department of Health and Human Service.
Google Scholar
Ajibade, O. S., Adewuyi, G. K., & Ogunjobi, G. A. (2018). Microbiology Assessment of groundwater from Hand dug wells in Igbo-Ora, Ibarapa Central Local Government area, Oyo State, Southwestern Nigeria. Science and Engineering Investigations,7(75), 78–84.
Google Scholar
Ako, A. A., Shimada, Y., Hosmo, T., Ichiyanagi, K., Nkeng, G. E., Fantong, W. Y., et al. (2011). Evaluation of groundwater quality and its suitability for drinking, domestic and agricultural uses in the Banana Plain (Mbanga, Njumbe, Penja) of the Cameroon Volcanic Line. Environmental Geochemistry and Health,33, 259–559.
Google Scholar
Ali, A., Strezoy, V., Davies, P., & Write, I. (2017). Environmental impact of coal mining and coal seam gas production in surface water quality in the Sydney basin, Australian. Environmental Monitoring and Assessment,189(408), 2–16.
Google Scholar
APHA. (1998). Standard methods for the examination of water and wastewater (20th ed.). Washington, D.C.: American Public Health Association.
Google Scholar
Asare-Donkor, N. K., Ofosu, Y. O., & Adimado, A. A. (2018). Hydrochemical characteristics of surface water and ecological risk assessment of sediments from settlements within the Birm River basin in Ghana. Environmental System Research,7(9), 1–17.
Google Scholar
Boughton, C. J., & McCoy, K. J. (2006). Hydrogeology, aquifer geochemistry and groundwater quality in Morgan County, West Virginia. West Virginia Conservation Agency and the Eastern Panhandle Conservation district, Scientific Investigations report 5198, pp. 1–36.
Bowell, R. J., Mceldowney, S., Warren, A., Mathew, B., & Bwankuzo, M. (1996). Biogeochemical factors affecting groundwater quality in central Tanzania. In J. D. Appleton, R. Fuge, & G. J. McCall (Eds.), Environmental Geochemistry and Health with reference to developing countries (Vol. 113, pp. 107–130). London: Geological Society Special Publication.
Google Scholar
Costigan, M., Cary, R., & Dobson, S. (2001). Vanadium pentoxide and other inorganic vanadium compounds. Consise international chemical assessment document (29th ed.). Washington, D.C.: Wealth Organisation.
Google Scholar
Duda-Chodak, A., & Blaszczyk, U. (2008). Review paper on the impact of nickel on human health. Journal of Elementol,13(4), 685–696.
Google Scholar
Eaton, A. D., Clesceri, L. S., Rice, E. W., Greenberg, A. E., & Franson, M. A. H. (2005). Standard methods for the examination of water and wastewater (21st ed.). Washington, D.C.: American Public Health Association.
Google Scholar
Edet, A. E. (2019). Seasonal and spatio-temporal patterns, evolution and quality of groundwater in cross River State, Nigeria: Implications for groundwater management. Sustainable Water Resources Management,5, 667–686.
Google Scholar
Edet, A. E., & Offiong, O. E. (2002). Evaluation of water quality pollution indices for heavy metal contamination monitoring. A case study from Akpabuyo–Odukpani area lower Cross River Basin, Southeastern Nigeria. Geojournal,57, 295–304.
Google Scholar
Edmund, W. M., & Smedley, P. L. (1996). Groundwater geochemistry and health overview. In S. P. Appleton, R. Fuge, & G. S. H. McCall (Eds.), Environmental Geochemistry and Health with reference to developing countries (Vol. 113, pp. 91–106). London: Geological Society Special Publication.
Google Scholar
Engshrom, E., Balton, B., Morberg, U., Thunyik, R., Geuly, T., & Mangolde, M. (2015). Prevalence of microbiological contamination in groundwater sources & risk factor assessment in Juba South Sudan. Science of the Total Environment,515–516, 181–187.
Google Scholar
Fantong, W. Y., Fouepe, A. T., Njomou, S. L. B., Banseka, H. S., Katsuro, A., Adelena, S. M. A., et al. (2013). Temporal pollution by nitrate (NO3), and discharge of springs in shallow crystalline aquifers: Case of Akok Ndoue catchment, Yaounde (Cameroon). African Journal of Environmental Science and Technology,7(5), 175–191.
CAS
Google Scholar
Fantong, W. Y., Satake, H., Ayonghe, S. N., Suh, C. E., Adelena, S. M. A., Fantong, E. B. S., et al. (2010). Geochemical provenance and spatial distribution of fluoride in groundwater of Mayo Tsanaga River Basin, Far North region Cameroon: Implications for incidence of fluorisis and optimal consumption dose. Environmental Geochemistry and Health,32, 147–163.
CAS
Google Scholar
Fezu, W. M. L., Ngassoum, M. B., & Mbofung, C. F. M. (2006). Physico chemical properties of spring/mineral waters commonly used by grazing animals’ cattle in Wakwa (Cameroon). Journal of Animal and Veterinary Advances,5(9), 386–718.
Google Scholar
Fonteh, M. F (2003). Water for all and the environment. The United Nations-Cameroon Water Development Report. United Nations Economics Commission for Africa. Addis Ababa, Ethiopia.
Fouepe, T. A., Ndam, J. R., Riotte, J., Takem, G. E., Mafany, G. T., Marechal, J. C., et al. (2011). Estimation of groundwater recharge of shallow aquifer on humid environment in Yaounde, Cameroon using hybrid water-fluctuation and hydrochemistry methods. Environmental Earth Science. https://doi.org/10.1007/s12665-010-0822-x.
Article
Google Scholar
Gadd, G. M. (2004). Microbial influence on metal mobility and application for bioremediation. Geoderma,122, 109–119.
CAS
Google Scholar
German Technical Cooperation. (GTZ 2008). Project pour l’ ameriolation de l’acces a l’eau potable et de l’assainissement de base dans les trios communes rurales de Manjo, Loum et Penja/Njombe, Province de Littoral- Camerooun. Doula–Cameroon.
Graham, J. P., & Polizzotto, M. L. (2013). Pit latrines and their impacts on groundwater quality: a systematic review. Environmental Health and Perspectives,121(5), 521–530.
Google Scholar
Howard, G., Pedley, S., Barret, M., Nalubega, M., & Jobal, K. (2003). Risk factors contributing to microbiological contamination of shallow groundwater in kampala, Uganda. Water Resources,371, 3421–3429.
Google Scholar
Hu, H. (2002). Human health and heavy metals exposure. In M. McCally (Ed.), Life support: The environment and human health (pp. 1–10). New York: MIT press.
Google Scholar
International Agency for Research on Cancer. (IARC 1987). Overall evaluations of carcinogenicity: an updating of IARC monographs, 1–42, Lyon, 226. IARC Monographs on the Evaluation of Carcinogenic Risks to Humans, Suppl. 7.
Jordao, C., Pereira, M., & Bellato, C. (2002a). Assessment of water systems for contaminants from domestic and industrial sewages. Environmental Monitoring and Assessment,79, 75–100. https://doi.org/10.1023/A:1020085813555.
CAS
Article
Google Scholar
Jordao, C., Pereira, M., & Bellato, C. (2002b). Assessment of water systems for contaminants from domestic and industrial sewages. Environmental Monitoring and Assessment,79, 75–100. https://doi.org/10.1023/A:1020085813555.
CAS
Article
Google Scholar
Ketchemen-Tandia, B., Boum-Nkot, S. N., Ebondji, S. R., Nlend, B. Y., Emvoutou, H., & Nzegue, O. (2017). Factors influencing the shallow groundwater quality in four districts with different characteristics in Urban Area, Douala, Cameroon. Journal of Geoscience and Environment Protection,5, 99–120.
Google Scholar
Khan, M. U., Malik, R. N., & Mohammed, S. (2013). Human health risk assessment from heavy metal via food crops consumption with wastewater irrigation practices in Pakistan. Chemosphere,93, 2230–2238.
CAS
Google Scholar
Kuitcha, D., Kamgong, K. B. V., Sigha, N. L., Lienou, G., & Ekodeck, G. E. (2008). Water supply sanitation and health risks in Yaounde, Cameroon. African Journal of Environmental Science and Technology,2(11), 379–386.
Google Scholar
Kuitcha, D., Ndjama, J., Tita, A. M., Lienou, G., Kamgang, K. B. V., Ateba, B. H., & Ekodeck, G. E. (2010). Bacterial contamination of water points of the upper Mfoundi watershed, Yaounde, Cameroon. African Journal of Microbiology Research, 4(7), 568–574.
Google Scholar
Lawrence, A. R (1986). Report on a visit to the Cameroun, 10–24 Sept 1986.
Luffman, I., & Tran, L. (2014). Risk factor for E. coli 0157 and cryptosporidiosis infection in individuals in the karst valleys of East Tennessee, USA. Geosciences,4, 202–218.
Google Scholar
Lugoli, F., Leopizi, M. I., Bagordo, F., Grassi, T., Gurdo, M., & De Donno, A. (2011). Widespread Microbiological groundwater contamination in the South-Eastern Salento, Apulia, Italy. Journal of Environmental Monitoring,13, 292.
Google Scholar
Mafany, G. T., Fantong, W. T., & Nkeng, G. E. (2006). Quality of groundwater in Cameroon and it vulnerability to pollution. In X. Yangxen & U. Brent (Eds.), Groundwater pollution in Africa (pp. 47–55). Balkema: Taylor and Francis.
Google Scholar
Magha, A., Awah, T. M., Nono, K. D. G., Wotchoko, P., Tabot, A. M., & Kabeyene, K. V. (2015). Physico-chemical and bacteriological characterization of spring and well water in Bamenda III (NW Region, Cameroon). American Journal of Environmental Protection,4(3), 163–173.
CAS
Google Scholar
Mason, B., & Moore, C. (1982). Principles of geochemistry. New York.: Wiley.
Google Scholar
Mbotake, T. I. (2006). A preliminary study of sources of arsenic contamination in South West Cameroon. Journal of Environmental Hydrology,14, 1–11.
Google Scholar
McFarlane, M. J., & Bowden, D. J. (1992). Mobilisation of aluminium in the weathering of profiles of the African surface in Malawi. Earth Surface Processes and Landforms,17, 205–789.
Google Scholar
Mohammad, R., Mohebbi, A., Reza, S. B., Ahmad, M. A., Kooshiar, A. V., Sharareh, L., et al. (2013). Assessment of water quality in groundwater resources of Iran using a modified drinking Water Quality Index (DWQI). Ecological Indicators,30, 28–34.
Google Scholar
Mohammad, S., Shah, M. T., & Khan, S. (2011). Health risk assessment of heavy metals and their source apportionment in drinking water of Kohistan region, Northern Pakistan. Microchemistry Journal,98, 334–343.
Google Scholar
Ndjama, Y., Kamgang, K. B. V., Sighd, N. L., Ekodeck, G. E., & Tita, M. A. (2008). Water supply, Sanitation, and health risk in Douala, Cameroon. African Journal of Environmental Science and Technology,2(11), 429–432.
Google Scholar
Nganje, T. N., Hursthouse, A. S., Edet, A., Stirling, D., & Adamu, C. I. (2015). Assessment of the health risk, aesthetic and agricultural quality of rain water, surface water and groundwater in shale bedrock areas of southeastern Nigeria. Water Quality, Exposure and Health,7(2), 153–178.
CAS
Google Scholar
Ngole-Jeme, V. M. (2016). Heavy metals in soils along unpaved roads in south west Cameroon. Contamination levels and health risk. Ambio,45(3), 374–386.
CAS
Google Scholar
Nono, A., & Likeng, J. D. H. (2008). Influences of lithology and geological strutures on groundwater in areas of Cameroon Volcanic Line (CVL) and Adamawa Plateau: In: Proceedings of the International symposium in Hydrogeology-Djibouti. Hydrogeology of volcanic rocks.
O’Dwyer, J., Douling, A., & Adley, C. C. (2014). Microbiological assessment of private groundwater derived potable water supplies in the mid-west region of Ireland. Journal of Water and Health,2, 310–317.
Google Scholar
Okonko, O., Adeyaye, O. D., Orunnusi, T. A., Fajobi, E. A., & Shituh, O. B. (2008). Microbiological & physiochemical analysis of different water supplies used for domestic purposes in Abeokuta and Ojota, Lagos state Nigeria. African journal of Biotechnology,7(5), 617–621.
Google Scholar
Parviainen, A., Loukola-Ruskeeniemi, K., Tarvainen, T., Hatakka, T., Harma, P., Backman, B., et al. (2012). Arsenic in bedrock, soil and groundwater: The first Arsenic guidelines for aggregate production established in Finland. Earth Science Reviews,150, 709–723.
Google Scholar
Paustenbach, D. J. (2002). Human and ecological risk assessment: Theory and practice. New York: Wiley.
Google Scholar
Pitkanen, T., Miettinen, I. T., Lett, O. H., Heikkkila, A., Maunula, R., Aula, V., et al. (2011). Microbial contamination of groundwater in a small community water supplies, Finland. Ambio,40, 371–390.
Google Scholar
Pius, A., Jerome, C., & Sharma, N. (2012). Evaluation of groundwater quality in and around Peeya industrial area of Bangalore, South India using GIS techniques. Environmental Monitoring and Assessment,184, 4067–4077.
CAS
Google Scholar
Pliz, J. (1993). Statistics for windows. Tulsa: Statsoft Inc.
Google Scholar
Radfard., M, Yunesian, M., Nabizadeh, R., Biglari, H., Nazmara, S., Hadi, M., et al. (2018). Drinking water quality and arsenic health risk assessment in Sistannad Baluchestan, Southwestern Province, Iran. Human and Ecological Risk Assessment, 0(0), 1–18. https://doi.org/10.1080/10807039.2018.1458210.
CAS
Article
Google Scholar
Ritter, L., Solomon, K., Sibley, P., Hall, K., Keen, P., Mattu, G., et al. (2002). Sources, Pathway and relative risks of contaminants in the surface water and groundwater: A perspective prepared for the Walkerton Inquiry. Journal of Toxicology and Environmental Health,65(1), 1–142.
CAS
Google Scholar
Ryan, R. P., Hough, R. M., & Watkers, R. T. (2010). Enrichment exposure assessment of As, Cr & Pb of the soils in the Vuenlly of Stawell, Victoria, Australia. Environmental Geochemistry and Health,32(193), 205.
Google Scholar
Smedley, P., & Kinniburgh, D. G. (2002). A review of the source, behavior and distribution of arsenic in natural waters and groundwater, eastern Wisconsin, USA. Hydrology Journal,8, 161–176.
Google Scholar
Sorlini, S., Palazzini, D., Sieliechi, M. J., & Ngassoum, B. M. (2013). Assessment of physical-chemical and drinking water quality in the logone valley (Chad-Cameroon). Sustainability,5, 3060–3076.
CAS
Google Scholar
Takem, G. E., Chadraeskharan, D., Ayonghe, S. N., & Tambidural, P. (2010). Pollution characteristics of alluvial groundwater from springs and bore wells in semi: Urban informal settlement of Douala, West Africa. Environmental Earth Sciences,61, 287–298.
CAS
Google Scholar
Tamasi, G., & Cini, R. (2004). Heavy metals in drinking waters from Mount Amiata (Tuscany, Italy). Possible risks from arsenic for public health in the Province of Siena. Science of the Total Environment,327, 41–51.
CAS
Google Scholar
Tanawa, E., Djeuda Tchaponda, H. B., Ngnikum, E., Temigoua, E., & Siakeu, B. (2002). Habitat and protection of water resources in suburban areas in African cities. Build Environment,37, 269–275.
Google Scholar
Tchamabe, B. C., Ohba, T., Kereszturi, G., Nemeth, K., Aka, F. T., Youmen, D., et al. (2015). Towards the reconstruction of the shallow plumbing system of the Barombi Mbo Maar (Cameroon): Implications for diatreme growth processes of a polygenetic maar volcano. Journal of Volcanology and Geothermal Research. https://doi.org/10.1016/j.jvolgeores.2015.06.004.
Article
Google Scholar
World Health Organization. (2006). Guidelines of drinking water quality. Geneva: World Health Organization.
Google Scholar
World Health Organization. (2007). Guidelines of drinking water quality. Incorporating the first and second Addeda, vol.1 Recommendation (3rd ed., pp. 121–143). Geneva: World Health Organization.
Google Scholar
World Health Organization. (2008). Guidelines of drinking water quality. Incorporating the first and second Addeda, vol.1 Recommendation (3rd ed.). Geneva: World Health Organization.
Google Scholar
World Health Organisation/United Nations Children Fund. (WHO/UNICEF 2004). Joint monitoring programme for water supply and sanitation. Meeting the Minimum Development Goal (MDG) drinking water and sanitation target.
World Health Organisation/United Nations Children Fund. (WHO/UNICEF 2010). Progress on drinking water and sanitation.