A unique approach to controlling air pollution has recently been trialled in Delhi, India, a city that suffers from some of the worst air pollution on the planet.
Spraying atomised water up to a height of nearly 100 feet, the 'anti-smog gun' tried to bring down the air pollution levels at Anand Vihar Bus Terminal. However, after a brief drop, the levels remained high throughout the day.
The machine was tested on a trial basis by the environment department and Delhi Pollution Control Committee (DPCC) in the presence of environment minister Imran Hussain. The final decision will be taken after testing many such machines, said Hussain.
According to the Times of India, a power connection was used to run the 'anti-smog gun'. DPCC officials said a diesel generator set would be required when the truck is moving around. The use of DG sets are banned in Delhi till March 15, 2018 to curb air pollution. "We are looking at CNG sets too as a cleaner alternative, but it's difficult to get them," said an official.
Sushant Saini, the managing director of Cloud Tech — the manufacturer, said the machine was already being used at construction sites and cement mines to control dust.
However, it doesn’t look like this technology will be a long-term solution. "This can be an instant measure for local effect, especially if there are local gross dust generators. However, a more sustained and long-term measure is needed to bring systemic changes," said Anumita Roy Chowdhury of CSE.