Technologies such as smog towers are interventions that are still being tested and are not a final solution to the problem of pollution, Prashant Gargava, Member Secretary, Central Pollution Control Board (CPCB), said at a webinar on Wednesday.
The ultimate solution to pollution would be controlling it at source. Technological interventions would at best give insight on how long these could be used to address pollution spikes, he stated.
To address Delhi’s exorbitant winter level pollution, smog tower — that consists of a large fan, housed in a tower to suck in polluted air and then have it pass through multiple particulate matter filters, was proffered as a solution.