In order to fight pollution, anti-smog guns are being deployed at construction sites in the national capital. Machine controls pollution by spraying water particles in air. "Pollution increases in Delhi before winter starts, the construction sites adds to the pollution, so we use this machine 8-10 times in a day," said Ramesh Kumar, a technician. "Our first target is to reduce pollution due to dust, for which we have released guidelines. Anti-smog guns are being used at large construction sites, around 39 sites have been identified for the same," informed Delhi Environment Minister Gopal Rai.