Dhaka, July 1 -- The government is set to announce 'Degraded Airshed' zones in Dhaka city soon to combat worsening air pollution, said Environment Adviser Syeda Rizwana Hasan.

"An expert committee will be formed to provide scientific recommendations on the matter," she told a meeting at the Department of Environment office in Agargaon, Dhaka on Tuesday.

The adviser emphasised the need for effective measures to control air pollution in the capital, and instructed officials of the Department to take prompt and effective action.

Under the Environment Conservation Rules, 1997, an area within the same air flow zone is designated as a 'Degraded Airshed' if the air quality standard is exceeded due to pollution.

Env Adviser Rizwana, Unicef st...