![]() ![]() This term as one of the most polluted cities in the world holds true when you observe the PM2.5 data readings taken over 2019 on the IQAir website. ![]() This considerable increase plays a very important part in establishing Delhi as a city with some of the worst air quality in the world. The vehicular emissions given off by these would be of an extremely high volume, with an estimated 11.2 million registered motor vehicles on the roads as of 2018, an increase of around 27 percent since 2015. More citizens mean more cars on the road as well as more buses and trucks to transport goods and people. As such, a result of this would be an increase in nearly all industries and a related increase in pollution directly correlating with the industrial and economic growth. This would put the city under immense pressure to improve its both its residential and commercial infrastructure. Pollution levels on the ground must be extremely high to maintain such an average, and it is well known that Delhi struggles with its population growth, with many ‘urban diseases’ becoming more and more apparent as the city struggles to keep up with the ever-expanding population. For a city to be in the unhealthy bracket as a year-round average, it is an indicator that there are significant health hazards from the air quality. In 2019 it ranked in with a PM2.5 reading of 98.6 µg/m³, putting it in the ‘unhealthy’ bracket of the US Air Quality Index, which requires a PM2.5 reading anywhere between 55.5 to 150.4 µg/m³. There are an estimated 30.2 million people registered living in Delhi as of 2020, all squeezed into a relatively small area of 1,484km², giving it an extremely high population density. The levels of fine and coarse particulate matter, known respectively as PM2.5 and PM10 are often prevalent in the air, as well as other forms of pollutants and toxic chemicals finding their way into the atmosphere, each with their own detrimental effects on human health. As the capital city of India, Delhi is subject to a high level of pollution year-round. ![]()
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