Uranium Contamination in Delhi

Context: New groundwater testing by the Central Ground Water Board shows rising uranium levels in Delhi, with 13–15% of samples showing elevated contamination. About Uranium Contamination in Delhi: What it is? Uranium contamination refers to the presence of uranium— a naturally occurring radioactive heavy metal— in groundwater at levels above permissible limits for safe drinking …

Foam in Yamuna River

Source: Hindustan Times Context: In preparation for Chhath Pooja, Delhi has faced recurring debates and actions around the toxic foam in the Yamuna River, where devotees gather for rituals. Why Does Foam Occur in the Yamuna River? Pollutant accumulation: The river’s lean flow during winter time reduces the natural dilution of pollutants, allowing them to …