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Delhi – ranked the most polluted capital city in the world, the 22 million residents of the metropolis experience year-round air pollution, but levels of noxious air spike during the winter when winds carry farmland smoke into the city.
We are all aware of the extreme levels of pollution that our capital city experiences in the winter.
But have you ever wondered why Delhi suffers from air pollution the most during the winter?
We should be conscious of the environment we live in and whether it is appropriate or sufficient for our health. (link)
Every year, the start of winter comes with the issue of air pollution in Delhi. In 2019, the average PM 2.5 exposure was 110 micrograms per cubic metre, which is 22 times the WHO standard and 22 times the amount that is regarded as safe.
Air pollution is the contamination of the atmosphere by compounds that are dangerous to the health of people and other living things, or that impair the climate or materials.
The Graded Response Action Plan (GRAP) categorizes the four levels of air quality in Delhi-NCR.
There are four stages as follows:
Delhi’s air quality index (AQI) increased from 357 (the “extremely poor” category) on October 28, 2022, to 402 on October 29, 2022. Source
An increase in air pollution is indicated by a higher AQI value.
Major sources of Air Pollution during winter –
Effect of air pollution – Everybody’s health and welfare are significantly impacted by air pollution in a number of different ways. Short-term and long-term exposure to pollutants can result in a number of diseases, including lung cancer, asthma, and heart disease. The level of air pollution increases during winter for many reasons warm air flows faster and is less dense than cold air. Due to its density, chilly air collects pollutants rather than sweeps them away. Compared to the summer, air pollution is breathed in more frequently in the winter since it is present for a longer period of time.
So, while we all enjoy ‘Delhi ki Thand’, please make sure to take care of yourselves and take necessary measures to protect yourself from Smog. Luckily, technology has come a long way and there are plenty of ways to protect yourself from this hazardous gas.
In addition to the nearly 4.2 million premature deaths that occur each year as a result of these exposures. PM, a haze of fine solid and liquid particles brought on by the combustion of fuel and vehicles, is the most frequent cause of these disorders.
Conclusion:- Level of air pollution increases during winter for many reasons like warm air flows faster and is less dense than cold air. Due to its density, chilly air collects pollutants rather than sweeps them away. Compared to the summer, air pollution is breathed in more frequently in the winter since it is present for a longer period of time. The likelihood of cooler days during the season will inevitably increase the number of “bad” to “severe” air quality days in the future for the entire IGP, particularly Delhi NCR.