After a little improvement on Sunday, when wind picked up, air quality worsened early on Monday, with forecasts of worse to come over the next few days. Lower winter temperatures and higher moisture, coupled with lower wind speeds tend to trap pollutants in the atmosphere, said Roychowdhury. The Indian Institute of Tropical Meteorology also said that changes in the speed and direction of the wind, and more stubble burning, had made the air more toxic. New Delhi and its satellite cities account for the bulk of air purifier sales but they are picking up in other cities such as Mumbai and Bengaluru. The air purifier market is dominated by Unilever’s, Blueair, Honeywell International Inc and Britain’s Dyson.

Source: bd News24 November 05, 2018 08:48 UTC