The Human Rights and Peace for Bangladesh on Tuesday sent a letter to the authorities concerned asking for legal actions against the vehicles of 22 transportation companies that emit black smoke.
The letter has been sent to the Bangladesh Road Transport Authority, commissioner and additional commissioner (traffic) of the Dhaka Metropolitan Police, said Supreme Court lawyer Manzil Morshed, also president of the rights organisation.
From September 8 to October 8, the organisation monitored vehicles of the transport companies at different points in the capital.
The points are: Science Lab, Banani flyover, Dhaka College, Bata Signal, Teachers Training College, LabAid Hospital, Asadgate, Shyamoli, Uttara, Dhanmondi 32, Kolabagan, Army Gulf Club, Regency Hotel, Hotel Radisson and Jahangir Gate.
The mentioned vehicles were found to be emitting black smoke, which is harmful to the environment as well as humans, said the letter.
After observing for a month, the organisation prepared a list containing the registration number of the vehicles and the time when those were found to be emitting black smoke, said Manzil Morshed.
The list has been submitted to the authorities concerned for taking legal action, he added.