It is very good news for the people of Kolkata that there will be no rain for some time. The air will be pure and fine with nitrogen dioxide and other chemical particles.
Cyclone Asani cleaned and improved Kolkata’s air quality on Wednesday
Index under 50 (particulate matter 2.5) endured in many parts, said an official with the West Bengal Environmental Protection Agency.
He explained that air quality had improved by 60 percent compared to last week.
Last week, the air quality index itself was suspended at 60-200 (AQ1-PM 2.5), which is the latest reading for the past month, officials said.
It is a good effect in Kolkata that rain can purify and kill air viruses or improve air quality and reduce pollution.
On Wednesday the rain showers scourged the city, the AQI (Air Quality Index) was measured at 2pm at Ballygunge, 32 in Bidhannagar, 37 in Fort William, 44 in Jadavpur and 36 at Rabindra Sarobar Air Inspection Stations reading 47 (PM.2.5), he said.
The AQI was documented at 70 at Rabindra Bharati University Air Monitoring Station in North Kolkata and 87 at the Victoria Memorial.