Extensive jute retting in the Chitra and Nabaganga rivers has caused severe water pollution in Narail, according to a report published on August 16, 2026. Rotting jute has turned previously clear river water black and unusable, while direct connections from Narail town’s drainage system and riverside housing sanitation facilities to the Chitra have compounded the pollution. The foul smell from the stagnant, rotten water has also affected air quality in nearby areas.

Local residents said farmers once retted jute in nearby ditches, canals, ponds, haors and other water bodies that held sufficient water. As those sources disappeared over time, farmers began using the Chitra, Nabaganga and other rivers and canals. Farmers said they know the practice damages river water but lack adequate alternative reservoirs. They also said transporting jute from wetlands to rivers is costly, while river-retted jute is often considered of comparatively better quality.

The report said pollution affects the rivers’ freshwater for about four months from June to September, with low oxygen levels hindering fish reproduction and threatening biodiversity. Environment Banchao Andolon president Shah Alam called for restoring lost water bodies and promoting modern retting methods. Deputy Commissioner Dr Abdul Salam said authorities would coordinate with relevant parties to develop effective alternatives that discourage river retting.