Despite making repeated pledges, many of the industries, especially those of fabrics, dyeing and tannery, continue polluting rivers, canals and other wetlands in the city just to boost their profit, say Department of Environment officials.
There are still 311 "red category" [severe polluter] industries in and around the capital that need to build effluent treatment plant (ETP), while 371 heavy polluter industries have so far completed the installation.
"However, many of them don't use their ETPs. They have spent money to install it but don't want to spend more to run it," said Mohammed Munir Chowdhury, director, Monitoring and Enforcement, DoE.
Recently, some of the polluters were caught red-handed while discharging untreated liquid waste despite having their own ETPs.
