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The quality and condition of the air that we breathe has been steadily declining over the years. It has become an urgent concern because of the increasing health problems arising due to the intake of bad quality air. Although there are specific cities in India that suffer from the severest air quality, we need to look at the problem from a broader perspective.
Breathing clean air has become alarmingly uncommon, especially so in big cities. The air quality index pollutants in the rapidly developing cities such as Delhi have reached dreadful heights. Each year, the residents face growing problems because of it, notably so during the winter season.
However, this does not mean that air pollution is only a problem in one or two cities. Even the cities with the best air quality index in India does not ensure healthy quality of air. Knowing about the significant air quality index pollutants can be helpful to determine the necessary measures to reduce its impact.
But, first, let’s understand how the national air quality index works.
What is Air Quality Index?
The national air quality index is a measurement of the air quality index pollutants on any given day. It is calculated on a daily basis to help understand the impact on the local population. Depending on the country, different parameters and scales are used to report the air quality index pollutants.
There are five major air quality index pollutants according to which the Environmental Protection Agency (EPA) calculates the national air quality index. These are:
