In today’s time pollution has become a problem for the whole world, in India the pollution increases a lot during the winter season. Due to this people have to face many health related problems, there are many reasons for pollution. Within which biomass burning, polluted air and water from the industry and construction work are the main reasons. Firecrackers are also said to be polluting during Diwali. But according to a research, it has come to the fore that crackers are not the main reason for the pollution during Diwali in metro cities, but the main reason is the weather.
During the research of a study report, seven pollutants including PM 2.5, PM 10, NH 3, NO 2, O 3, CO and SO 2 were studied in metros like Kolkata, Delhi and Mumbai during Diwali. The study studied Diwali of 2019 and Diwali of 2020.
The study revealed that out of the three metros, Delhi had the highest pollution. Pollution levels in Mumbai and Kolkata were largely normal in 2020 as compared to Diwali in 2019 but the weather conditions in Delhi made the air pollution situation worse. The concentration of “PM 2.5, PM 10, NO2, NH3, SO2, CO and O3” in Delhi was higher in Diwali of 2020 than in Diwali of 2019. The level of pollutants in the atmosphere of Delhi was significantly higher in 2020 than in 2019.
Dr. Abra Chanda, who is doing this research, said that in the year 2019 of the corona epidemic, there was not much difference in the pollution figures during Diwali. The Diwali figures for 2019 prove that the late Diwali comes, the pollution levels increase as winters begin by that time.
how was the level of pollution
According to the report, the level of PM 2.5 in Diwali of 2019 and 2020 was significantly higher in Delhi and Kolkata except Mumbai. Tropospheric O3 levels were normal in the cities for the rest of the time except Kolkata’s Diwali of 2020. The level of NO 2 was also under control except for Diwali.
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Dr. Abra Chanda said that the change in the weather of Delhi during Diwali is the main reason for pollution. The weather in Kolkata and Mumbai during Diwali of 2019 and 2020 was normal, due to which the pollution level did not increase much there. Dr. Abra Chanda further informed that Delhi saw a significant jump in PM 2.5, PM 10 and CO levels during Diwali of 2019 and 2020, while Kolkata saw a significant increase in O3 levels. The rise in O3 levels there is a proof of the fact that there was a huge burst of crackers during Diwali.
A week after Diwali, pollution levels in Mumbai and Kolkata returned to normal as before Diwali, but reversed in Delhi. The level of pollution in Delhi increased instead of decreasing, according to the report, the increasing level of PM 2.5 in Delhi gives the most problems.
Dr. Abra Chanda told that particulate particulate pollution is present in the atmosphere, it is a mixture of solid particles and liquid droplets. You cannot see them with your eyes, these particles contain PM 2.5 and PM 10 which are harmful to your health. These dust, cooking fumes and vehicles come out of the engine, these particles mix in the air and pollute it. It enters the body through your nose and increases diseases like cough, asthma. Not only this, due to them heart attack can also occur.
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