Citation | Mohammed, H.A., N.A.H.M. Ali, K.A. Hussein and A.H. Sharif. 2026. Evaluation of microbial and chemical contamination in drinking water and the role of household purification systems in improving water quality. Sarhad Journal of Agriculture, 42(3): 1197-1210. DOI | https://dx.doi.org/10.17582/journal.sja/2026/42.3.1197.1210