Install mist sprays on electric poles in Delhi’s pollution hotspots: Environment Minister Manjinder Singh Sirsa
Authorities have been directed to deploy mechanical water sprinklers and anti-smog guns at regular intervals along road stretches in pollution-prone areas in Delhi.
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According to Sirsa, another added advantage was that this would not require additional roadside infrastructure.Delhi Environment Minister Manjinder Singh Sirsa on Monday issued a directive to mandatorily install mist or water sprinklers on electric poles along road stretches and verges across identified pollution hotspots in the national capital.
“Delhi Development Authority (DDA) and New Delhi Municipal Council (NDMC) have piloted such installation of mist spray system on electric pole along selected stretches,” Sirsa said, adding, “… it was felt that the replication of such mist spray system as on large scale could have favourable impact on air pollution and is similar to water sprinklers and anti-smog guns which are being used.”
According to Sirsa, another added advantage was that this would not require additional roadside infrastructure.
A direction in this regard has been issued to all infrastructure and civic departments, including the public works department, central public works department, irrigation and flood control department, Delhi Development Authority, Municipal Corporation of Delhi, New Delhi Municipal Council, and National Highways Authority of India, making it mandatory for departments to deploy mechanical water sprinklers on electric poles and anti-smog guns at regular intervals along road stretches in pollution-prone areas.
The action follows the identification of air pollution hotspots by the Delhi Pollution Control Committee and the Commission for Air Quality Management (CAQM), and forms part of the Graded Response Action Plan (GRAP) implementation roadmap.
To ensure effective dust suppression, the environment department has specified the use of micro or mist-type jets with a droplet size of 50–100 microns and operating pressure between 0.45 to 0.65 MPa.
The deployment is to be supported by the mechanised sweeping with integrated jetting systems, especially along high-traffic roads and urban construction corridors. Departments have been directed to ensure that central verges and intersections in the listed hotspot areas are kept dust-free through routine misting operations.
The department also suggested the technical specifications for mist spray systems to customise based on operational needs. This included details on reverse osmosis system capacity, pre-treatment and filtration, automation and monitoring, installation and maintenance, etc.
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