Overview

• Half of the world's population is without safe drinking water, impacting health and sanitation.
• The study used advanced geospatial data and machine learning for more accurate estimates.
• Fecal contamination is a major issue, posing severe health risks, especially for children.
• Limited data and inadequate infrastructure contribute to discrepancies in previous assessments.
• The findings highlight the urgent need for comprehensive water quality testing and investment in infrastructure.