Dhaka, April 28 -- Dhaka North City Corporation (DNCC) Administrator Mohammad Ejaz has said authorities are planning to set up "air purifiers" in at least 50 places in Dhaka to prevent air pollution.

On Monday, he said discussions were already under way with different companies to install the purifiers.

Speaking at a policy dialogue jointly organised by the DNCC and the Center for Atmospheric Pollution Studies (CAPS), Ejaz said the major cause of air pollution in Dhaka is 20-year-old vehicles and construction work.

He said the DNCC recommended getting rid of old vehicles, and added: "We are moving towards a system that can reduce pollution from construction work and other reasons."

"Just as 100 trees purify and cool the air, each devi...