References
Abollino, O., Aceto, M., Malandrino, M., Mentasti, E., Sarzanini, C. and Petrella, F. (2002). “Heavy metals in agricultural soils from Piedmont, Italy. Distribution, speciation and chemometric data treatment.” Chemosphere, 49(6), 545-557. https://doi.org/10.1016/S0045-6535(02)00352-1 Adelekan, B. A. and Abegunde, K. D. (2011). Heavy metals contamination of soil and groundwater at automobile mechanic villages in Ibadan, Nigeria. International Journal of the Physical Sciences, 6(5), 1045–1058. Ajugwo, A. O. (2013). Negative effects of gas flaring: The Nigerian experience. Journal of Environment Pollution and Human Health, 1(1), 6–8. Akpokodje, E. G. and Etu-Efeotor, J. O. (1987). The composition and physical properties of laterite soils derived from different parent rocks in southeastern Nigeria and their implications on road construction. Engineering Geology, 23(1), 1–16. American Public Health Association . (2017). Standard methods for the examination and wastewater (23rd ed.). APHA Press. Batool, S. and Al-Azawi, A. (2020). Influence of roofing materials on environmental metal pollution. Environmental Monitoring and Assessment, 192(4), 252. Chow, G. S. E., Chan, Y. K. S., Jain, S. S. and Huang, D. (2019). Light limitation selects for depth generalists in urbanized reef coral communities. Marine Environmental Research, 147, 87–96. https://doi.org/10.1016/j.marenvres.2019.04.013 Daniel, D. U., Obiora, C. S. and Nwankwo, P. (2021). Impact of acid rain on metal dissolution from roofing sheets. Environmental Chemistry Review, 18(3), 221–232. Du, C., Li, F., Chen, W. and Han, J. (2017). Influence of roof materials on rainwater quality: A review. Environmental Science and Pollution Research, 24(31), 24152–24167. https://doi.org/10.1007/s11356-017-0170-2 Emmanuel, O. (2023). Heavy metals infiltration from roofing materials into soil and groundwater: Case studies in Nigeria. Journal of Environmental Geoscience, 30(2), 145– 158. https://doi.org/10.1080/12345678.2023.1234567 Enedoh, M. C. (2023). Etermination Of The Leaching Tendencies Of Various Roofing Sheets Modelled As Rain Water Harvesters In Imo State Nigeria. J. Chem. Soc. Nigeria, Vol. 48, No. 4, pp 729 - 734 Grazyna, K. (2017). Efficiency of heavy metal removal during roof runoff infiltration through vegetated soil. Journal of Environmental Quality, 46(5), 1215–1224. Iloba, K I., (2020). Climate characteristics of Delta State, Nigeria: Implications for water resources. Nigerian Journal of Climatology, 14(2), 77–85. Itodo, A.U., Wuana, R.A. Erhabor,O. D., Obruche, E.K. Agbendeh, Z. M. (2021).Evaluating the Effects of Roofing Materials on Physicochemical Properties of Harvested Rainwater in Warri, Delta State, Nigeria. Nigerian Journal of Environmental Sciences, 35(1), 55–65. McIntire, J., Brown, P. and Wong, T. (2019). Heavy metal concentrations in urban roof runoff: Case studies from Asia.Environmental Monitoring and Assessment, 191(12), 734. https://doi.org/10.1007/s10661-019-7943-9 IIARD International Journal of Geography & Environmental Management Nicholas, E. and Ukoha, G. (2023). Seasonal variations of pH in harvested rainwater across the Niger Delta. African Journal of Water Resources, 18(2), 211–222. Olaoye, R. A. and Olaniyan, A. A. (2012). Quality of rainwater from different roofing materials in Ogbomoso, Nigeria. International Journal of Engineering and Technology, 2(8), 1410– 1416. Omuku, S., Ezeabasili, A. and Okoro, B. (2022). Comparative evaluation of rainwater quality from and Pollution Studies, 9(1), 15–27. Water resources. Nigerian Journal of Climatology, 14(2), 77–85. Perkin Elmer Analyst 200 Shelton CT, USA Radojevic, M. and Bashkin, V. N. (1999). Practical Environmental Analysis. Cambridge: Royal Society of Chemistry. ISBN 0-85404-594-5. Sixtus, O., Ijeoma, A. and Kingsley, N. (2019). Assessment of subsurface water pollution in parts of Delta State, Nigeria. Nigerian Journal of Hydrogeology, 24(2), 101–110. World Health Organization (2023). Water sanitation, hygiene, environmental cleaning and waste management in health care facilities: 2023 data update and special focus on primary health care Geneva ISBN 978-92-4-010392-4