Delhi gets second smog tower
GS Paper - 3 (Environment)
After a smog tower became operational in Connaught Place on 23 August 2021, an over-20m-high tower — Delhi’s second major similar facility — was inaugurated in Anand Vihar, which is among the city’s most polluted locations.
- Funded by the Centre, this tower in east Delhi, too, has been developed on the same methodology as the CP tower, a Delhi government project.
- Union minister for environment, forest and climate change Bhupender Yadav virtually inaugurated it on the second International Day of Clean Air For Blue Skies.
- The tower, proposed by IIT-Bombay, is downdraft type — polluted air comes in from the top of the tower and clean air comes out from the bottom — for localised reduction of PM2.5 and PM10.
- The filter system, a novel geometry filtration system, has been designed by University of Minnesota, and is to work with an efficiency of 90%. Forty fan units have been installed to provide a designed airflow rate of 1,000m3/sec.
- The tower has been built by Tata Projects Limited with NBCC (India) Ltd as the project management consultant. IIT-Bombay, in collaboration with IIT-Delhi, will validate its performance.
- An advisory committee, headed by the chairman of Central Pollution Control Board and comprising of experts from IITs, NEERI, MoEF&CC, Engineers India Limited, NTPC and NBCC, has been constituted to oversee the progress, review the performance and guide on improvement and optimisation.
- Outdoor air purifiers were earlier installed in Lajpat Nagar, Krishna Nagar and Gandhi Nagar.