Delhi was battling pollution in ‘poor’ to ‘very poor’ category since the last many days. As anticipated, fairly widespread rain and thundershower activity has washed away the pollution from entire Northwest India including that of Delhi. For the first time in this season, Delhi pollution levels have improved to have touched the ‘moderate’ and ‘satisfactory’ levels. Moreover, PM 10 and PM 2.5 have come down below the 100 mark in parts of Delhi NCR. Air pollution levels are marginally above 100 in a few pockets. Looking at data, the air quality of Pusa and Lodhi Road at present are in ‘satisfactory’ category, which is definitely a reason to cheer up. Chandni Chowk is the only location which is still in ‘very poor’ category.
As stated by Skymet Weather, the only two ways of dispersing or clearing the pollution are moderate to strong winds blowing for a prolonged duration, and good rains. Although, moderate winds were observed over Delhi- NCR but they were not from the same direction. Moreover, these did not continue for longer duration i.e. for days together. But fortunately, second remedy i.e. good rains occurred at many places. The reason for these widespread rains over Northwest, Central and East India can be attributed to an active Western Disturbance and its induced Cyclonic Circulation.
Now, these rains have moved away eastwards. We expect moderate flow of northwesterly winds to commence tomorrow onward which will not allow an immediate spike in ‘Delhi pollution’. Therefore, we can say Delhi pollution will be at ease at least for a week or so.
Image Credits – The Financial Express
Any information taken from here should be credited to Skymet Weather