What is an anti-smog cannon? Delhi is counting on it to reduce air pollution
The trial of “fog cannon” began at Anand Vihar ISBT — one of the pollution hotspots in Delhi — on Wednesday in an exercise that will be used by the Delhi government to observe the difference in pollution levels, if any.
The fog cannon, also dubbed as the ‘anti-smog cannon’, comprises a cylindrical drum with a tank to store water and a high-velocity exhaust fan. The water is pumped from the tank to the exhaust fan which blows out water in the form of micro droplets. The theory is that the sprayed water will cling on to the pollutants — particularly particulate matter PM2.5 and PM10 — and wash it down creating the effect of rain. The current trials will be used to find if the theory holds true.
“The fog cannon has been designed to tackle the problem of airborne dust particles generated by open mining activities, demolition work and bulk material handling. This has been shown to suppress up to 95% of airborne dust particles. At present, our machines are being used at mines, thermal power plants and cement plants,”said Vimal Saini, director of Haryana-based Cloud Tech which designs and operates the fog cannon.
The anti-smog cannon will be used throughout the day with the monitoring station at Anand Vihar observing any changes in pollution levels. “Exactly how much reduction takes place will be possible to know through this exercise,” Saini said.
On Monday evening, the functioning of the machine was demonstrated to deputy chief minister Manish Sisodia and environment minister Imran Hussain.
Delhi environment secretary AK Singh had earlier informed Lieutenant Governor Anil Baijal about the decision to use a “fog cannon” during a review meeting on the city’s air pollution.
Quicked is empty for story with id 101656663641614
Karnataka home minister Araga Janendra said Friday he had only just received information about an alleged assault on two women in Anekal, a town in Bengaluru district. The sisters were allegedly stripped and assaulted at their home for failing to pay a debt. Multiple media reports have said the police refused to file a complaint for two days and only did so after videos of the assault were widely shared online.
A Maoist carrying a reward of Rs 5 lakh on The Maoist, Kamlesh's head was gunned down by Chhattisgarh police in an encounter in Bastar's Sukma district on Friday, police said. The Maoist, Kamlesh was a member of Malenger Area Committee of Darbha Division of CPI (Maoist), police said. On Thursday, neighboring Dantewada police gunned down Denga Deva alias Mahangu Deva, who was a member of Katekalyan Area Committee of CPI (Maoist).
The first monsoon showers that hit the semi-arid region of south Malwa on Thursday night brought respite for cotton farmers from the deadly whitefly but exposed the ill-preparedness of the civic authorities in the urban areas as several areas in Bathinda town were in knee-deep in water. Also read: Monsoon arrives in Chandigarh tricity, so does misery Low-lying areas, such as Power House Road and Sikri Bazaar, were waterlogged.
A mild earthquake was felt in Karnataka's Dakshina Kannada district early Friday morning - the third in the past seven days. News agency PTI said locals were woken up at around 1.15 am by a loud noise and tremors that were felt in Sampaje, Guttigaru, Ubaradka, Goonaka, Elimale, Sullia and nearby areas. Officials told PTI a report from the natural disaster monitoring centre is awaited. On Saturday (June 25), a 2.3 quake was recorded.