Sources and factors influencing groundwater quality and associated health implications: A review

Groundwater is essential for man's well-being and survival and is imperative for promoting public health. A wide range of groundwater quality studies have been conducted globally. However, there is no categorical study that specifically synthesizes the sources and factors that threaten groundwater quality in the country. This study considered 15 countries. The review showed that globally groundwater systems are predominantly contaminated with microorganisms, heavy metals, trace elements, organic compounds, and agrochemicals (dichlorodiphenyltrichloroethane/1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane (DDT) and dichlorodiphenyldichloroethylene (DDE)). Though organic matter levels in groundwater is less studied…