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Dust suppressants will be used in Delhi to mitigate pollution from dust. This, however, is not the first time it has been used in the Capital and parts of NCR.

Facts About:

• Magnesium or calcium salts with moisture-absorbing properties can act as dust suppressants.
• For longer-lasting dust control, water and dust suppressant powder are combined and sprayed on roads.
• Efficacy: In 2019, the Central Pollution Control Board (CPCB) advised using them, citing a study that discovered a 30% decrease in dust concentration, including PM10, PM2.5, and PM1, when dust suppressants were used in conjunction with water.
• Dust suppressants combined with water are significantly more effective at reducing particulate matter emissions than plain water sprinkling, according to a 2019 advisory from the Delhi Public Works Department (PWD).
• Magnesium chloride and bio-additives have been found to be particularly effective as a dust suppressant.
• To reduce dust emissions, the Delhi Pollution Control Committee and the CPCB both released guidelines recommending the use of dust suppressants during construction and in areas with high levels of dust.