A Review on Water Quality Aspects of Urban Rainwater Harvesting in Jordan.

Rainwater harvesting has regained importance in light of increasing water scarcity, particularly in arid and semi-arid regions such as Jordan, as it can be utilized for a variety of uses, including drinking and irrigation. However, the quality of harvested rainwater is of vital importance in determining its intended use, as it may be vulnerable to contamination from different sources during its journey from the atmosphere to storage facilities. Several studies have investigated the water quality issues of the rainwater harvesting system in Jordan, including the quality of direct rain, runoff water, and stored water in cisterns. The factors affecting water quality were also investigated. This paper reviews the rainwater quality harvesting systems in Jordan. The findings revealed that microbial contaminants were frequently reported, exceeding the allowable limits set by the Jordanian standard for drinking purposes. In contrast, direct rain was found to be of better quality. Despite the importance of organic and emerging contaminants in recent water research, minimal attention has been paid to these contaminants. Future research should also focus on options for improving water quality, such as prior treatment measures. [ABSTRACT FROM AUTHOR]