Overview
- More than 350 samples plotted on ITBA’s relaunched interactive map show elevated arsenic across at least seven provinces, extending the issue beyond historic hotspots.
- ITBA reports that roughly 70% of Buenos Aires province shows contamination, with numerous municipalities registering high‑risk readings above 50 ppb.
- The institute estimates over four million people could be exposed to levels exceeding the WHO guideline of 10 ppb; results are displayed in green (50) zones.
- AySA and regional providers, including Aguas Cordobesas and local operators in Villa María and Villa Nueva, state that water from their networks complies with regulations and caution against using unmonitored private wells.
- Experts warn that chronic exposure can lead to HACRE and raise cancer and respiratory risks, and they call for expanded monitoring, targeted oversight of perforations, and deployment of proven removal technologies.