The ditch in neighborhood 5B, Bai Chay ward is one of the drainage gates of surrounding residential areas to Ha Long Bay.
In recent days, this ditch has changed color, turning black and smelly. Even when the tide rises, the entire hundreds of meters long ditch turns black to the edge of the coast and only fades when it has merged with seawater.


In this ditch, there are 2 sewer gates discharging surface water and wastewater from residential areas and nearby businesses into the sea.

This is not the first time this ditch has transported a heavily polluted wastewater source directly into Ha Long Bay. However, so far there has been no solution to overcome it, causing the water along the coast of Ha Long Bay to become increasingly polluted.


