Kolkata: City air in early December has not been clean in decades that have rain before the time cleaning the air, wash pollutants or fine particles.
Throughout Monday, all air quality monitoring stations in the city remained dark green, showing ambient air ‘good’ (AQI 0-50).
Even sustainable ambient air quality monitoring stations (CAAQMS) at Rabindra Bharati University outside the BT Road, which is usually dark or red brown (poor to very bad air quality) consistently through winter, light green, showing air quality Satisfying (Aqi 51-100) on Monday morning.
Over the day, the AQI level increased and, at 8pm, even Rbu Caaqms Aqi turned into dark green.
Leading pollutants at the station also change.
Dominant pollutants during winter are good particle material, PM2.5 – diameter of less than 2.5 micrometres that can run directly into the bloodstream.
However, the unrelenting rain has cleaned the air and, not PM2.5, dominant pollutants for Ballygunge are NO2, for Bidhannagar, SO2, for RbU it is PM10, and it is Rabindra Sarobar.
“This is a miracle of meteorology.
In addition to cleaning up the air, rain prevents dust resolves effectively.
Road dust resuspension greatly contributes to the decline in air quality,” said a scientist at the West Bengal Polution Council.
“It’s a rare combination.
You enjoy winter and easy to breathe.
In winter, with cold rising, the level of pollution usually increases.
The majority of the population of the city is currently developing some respiratory pressure so far,” said Environmental Activist S M Ghosh.
“Good air quality gives patients with respiratory respiratory pressure period The chillary cold and increase air pollution, this rain comes as a blessing, “said Senior Pulmonological Arup Harder.