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- IIT-Kanpur is prepared to use artificial rain to tackle air pollution in the Delhi-NCR.
- It proposes to use artificial rain through cloud seeding to clear pollutants and dust from the air.
- A number of permissions and particular climatic conditions are needed for cloud seeding and producing artificial rain.
- IIT-Kanpur has been working on creating needed conditions for artificial rains for over five years. It carried out successful trials in July.
- The researchers have got permission from government authorities, including the Directorate General of Civil Aviation (DGCA), for cloud seeding.
- Artificial rains require specific meteorological conditions, such as the presence of clouds with adequate moisture and suitable winds.
- It remains to be seen whether cloud seeding and creating artificial rain can work in pre-winter months.
- Delhi’s air quality entered the ‘severe plus’ category for the 2nd time in three days.
- Silver iodide, potassium iodide and dry ice (solid carbon dioxide) are the most common chemicals used for cloud seeding.
- Liquid propane has also been used. The use of hygroscopic materials—like table salt—popularity is growing.
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