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| Fig- Water Boat on Buriganga River |
In the distant past, the course of the Ganges River used to reach the Bay of Bengal through the Dhaleshwari River. When this course gradually shifted and ultimately lost its link with the main channel of the Ganges it was renamed the Buriganga. It is said that the water levels during high and very high tides in this river astonished the Mughals.
In the 20th century, the water table and river became polluted by polythenes and other hazardous substances from demolished buildings near the river banks.
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| Fig- How Hacking River Bank |
The quality of the Buriganga water in Dhaka improved to some extent after the tanneries of Hazaribagh were shut down recently. Tests by the Department of Environment (DoE) say so and so do the people of the area.