'Old Ganges') is a river in Bangladesh which flows past the southwest outskirts of the capital city, Dhaka.

[4] According to the Bangladesh Department of Environment, 21,600 cubic metres (5.7 million US gallons) of toxic waste are released into the river by the tanneries every day.

[5][6][7] Experts identified nine industrial areas in and around the capital city as the primary sources of river pollution: Tongi, Tejgaon, Hazaribagh, Tarabo, Narayanganj, Savar, Gazipur, Dhaka Export Processing Zone and Ghorashal.

According to the Dhaka Water and Sewerage Authority (WASA), about 12,000 cubic metres (420,000 cu ft) of untreated wastewater are released into the lake from Tejgaon, Badda and Mohakhali industrial areas every day.

Because of Dhaka's heavy reliance on river transport for goods, including food, the Buriganga receives especially high amounts of food waste since unusable or rotting portions of fruits, vegetables, and fish are thrown into the river.