Urgent.News

What's breaking now, across thousands of outlets.

More in Science

How a lack of oxygen is releasing arsenic into wells around the Brahmaputra River Basin

Research Matters Staff Writer(s) Kharagpur 4 Aug 2026 Researchers have found why groundwater across one of the world’s most populated river basins is frequently contaminated with toxic elements.

  • Lack of oxygen in groundwater releases arsenic and nickel into wells.
  • Thick clay layers in Brahmaputra Basin create reducing environments.
  • Study predicts safe drilling locations based on sediment composition.

More from Tuesday 4 August →