Its a very good news for Kolkata people is that rain will not be a part of it for sometime. The air will be pure and fine with nitrogen dioxide and other chemical particles.
On Wednesday a cyclone ‘Asani’ cleaned and improved the air quality in Kolkata as the
directory endure below 50 (particulate matter 2.5) in many parts, West Bengal pollution control board official said.
He stated that the air quality has improved 60 percent from last week.
Last week the air quality index was suspended itself on 60-200 (AQ1-PM 2.5) which is the latest for the past one month, the officials said.
It is a good impact in Kolkata that rain can purify and kill air viruses or improve the air quality and lessens pollution.
On Wednesday the rain showers castigate the city, the AQI (air quality index) was recorded at 47 (PM.2.5) at Ballygunge, 32 at Bidhannagar, 37 at Fort William, 44 at Jadavpur and 36 at Rabindra Sarobar air inspection stations at 2pm, he said.
The AQI was documented at 70 at the air surveillance station at Rabindra Bharati University in North Kolkata and 87 at Victoria Memorial.