Skymet weather

Delhi AQI to deteriorate further, may improve Post Diwali

November 4, 2021 4:01 PM |

The Air Quality of Delhi NCR usually starts deteriorating from second week of October. However, Air quality of Delhi remained in moderate to satisfactory category and till October 26th. Late withdrawal of monsoon is the main reason for this. On and off rains continued until third week of October therefore, stubble burning in the neighboring State of Punjab, Haryana as well as central parts of Pakistan remained under check. Air quality of Delhi e remained in poor to very poor category since October 27.

Western disturbance was impacting the Himalayas and a cyclonic circulation was over Northwest Rajasthan and adjoining parts of Haryana. Light variable and easterly winds were blowing over Northwest India including Delhi since last 48 hours. These weather conditions have adverse impact on AQI, and Delhi Pollution has become very poor.

We think the stubble burning will be at its peak in coming week and smoke from these States may reach Delhi due to the change in wind direction from easterly to northwesterly. However, there is a silver lining, northwesterly strong winds are anticipated from evening of November 5, which will help in the dispersal of pollutants and situation will not become very grim.

Last year in 2020, just after Diwali there was intense rain over northern plains including Delhi and AQI came down to satisfactory category from severe. And in 2019, after Diwali, strong winds from northwest direction had disposed the pollutants. In a nutshell ,we can say despite stubble burning and firecrackers, weather conditions can rescue us from deadly air quality.

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