Yamuna River Chokes in Toxic White Froth

Toxic white froth has once again enveloped sections of the Yamuna River near Kalindi Kunj, a recurring issue that intensifies with falling winter temperatures. The frothy foam, resembling clouds, rolls across the water's surface, highlighting the severe pollution levels and the river's ecological distress. This phenomenon is scientifically attributed to surfactant molecules, similar to soap, which are agitated by water falling from the Okhla barrage.

The presence of these surfactant molecules stems from various sources, including untreated domestic sewage, industrial discharge, laundry activities, and the decomposition of water hyacinth. Experts note that the Yamuna's condition has worsened over the past decade, with froth now a year-round concern. To mitigate the visible foam, especially before the Chhath festival, the Delhi Jal Board plans to deploy defoaming chemicals, a practice initiated in 2022.

However, environmental activists argue that these chemical treatments only address the symptoms, not the root cause of the river's extreme pollution. Studies, including one by TERI, have pointed to the inefficient functioning of sewage and effluent treatment plants in removing surfactants. Hotspots like Akshardham and Khichdipur continue to discharge untreated wastewater directly into the Yamuna, contributing to the ongoing crisis despite repeated flagging by various pollution control agencies.