Temporal dynamics of groundwater quality and associated health risks in a semi arid region of South India

Key Points

• Negative changes in groundwater quality over time increase health risks for the local population, especially children.
• Significant contaminants, including nitrates and heavy metals, were detected in groundwater samples collected over multiple seasons.
• Assessment utilized a longitudinal analysis across various wells in the region to track water quality fluctuations.
• This study highlights the potential health impacts from polluted groundwater, suggesting more stringent monitoring and policies are necessary.