Dhaka, Bangladesh July 18: Rivers near Dhaka, Bangladesh, are biologically dead and especially toxic during dry seasons, a water resource expert said Saturday.
"The rivers around Dhaka have too little oxygen for the survival of aquatic life," Umme Kulsum Navera, assistant professor of Water Resource Engineering of Bangladesh University of Engineering and Technology, told the news service IRIN.
Oxygen levels increase during the monsoons but not enough to allow for a healthy aquatic environment. Specialists warn the rivers cannot be cleaned.
