In the past, sustainable use of freshwater was considered mainly from a water quantity perspective; however, Sustainable Development Goal (SDG 6) target 6.3 (United Nations, 2015) highlights the equal importance of water quality. Sustainable water use requires monitoring of both quantity and quality, but the limited data on both water quantity and quality is reducing the efficiency of integrated water resources management, resulting in the deterioration of ambient water quality worldwide. Countries often focus primarily on managing water quantity to improve productivity in agriculture, and to supply urban and industrial sectors.