TN Assembly Election 2026: Erode water pollution crisis sparks health, environmental alarm

The discharge of untreated textile effluents into the Sunnambu canal in Tamil Nadu’s Erode district has emerged as a major environmental and public health concern, drawing sharp political attention ahead of the Assembly elections.

What was once a narrow irrigation canal has turned into a dark, foul-smelling drain, residents say, with polluted water eventually flowing into the Cauvery River — a lifeline that supplies drinking water to millions and sustains vast agricultural lands across the state.

Locals describe the pollution as a long-standing crisis, alleging that contaminated water has affected their health, livestock, crops and livelihoods. Farmers complain of declining soil fertility, while residents fear long-term health consequences due to prolonged exposure to toxic waste.

The issue has triggered political backlash, with the opposition AIADMK accusing the government of negligence. The party claims that a Central Treatment Plant was proposed during its tenure, but alleges that the present administration has failed to take effective steps to address the problem.

The ruling DMK, however, maintains that action is underway. Officials say measures are being implemented to curb illegal discharge, including the construction of a parallel canal aimed at preventing polluted water from entering the main channel and contaminating groundwater sources.

With water security and environmental protection emerging as key voter concerns, the pollution of the Sunnambu canal and its impact on the Cauvery River have drawn heightened public scrutiny. As the Tamil Nadu Assembly elections approach, the government’s response to the crisis is expected to play a crucial role in shaping voter sentiment in the region.