Today, people in many cities around the world, including India, are experiencing breathing difficulties due to air pollution. Swiss company IQAir shares real-time rankings for 121 countries. According to this ranking, two cities in India and Pakistan are in very bad shape. India has three cities on the list of 121 countries, including the capital Delhi, Kolkata and Mumbai. On November 13, the capital Delhi ranked first in the real-time rankings of Swiss company IQAir. Delhi’s air quality index hit 515 today.
Pakistan ranks second
Meanwhile, Pakistan’s Lahore district ranks second. The air quality index (AQI) here is 432. Lahore’s AQI is 432 in IQAir’s real-time ranking. At the same time, the neighboring city of Karachi is also included in this list. Karachi ranks 14th with an AQI of 147. 
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The country’s city ranks third
Kinshasa in the Democratic Republic of Congo ranks third among the world’s most polluted cities. The air quality index (AQI) here is 193. Meanwhile, the Egyptian city of Cairo ranked fourth, with an air quality index of 184. Meanwhile, the name of Hanoi, the capital of Vietnam, ranks fifth in the rankings. The air quality index here has reached 168. Ranking sixth is Doha, Qatar, with an air quality index of 166. Apart from this, Riyadh in Saudi Arabia ranked seventh, with an AQI record of 160.
Names of 2 other cities in India
Kathmandu, the capital of Nepal, ranked eighth, with an air quality index of 160. Ranking ninth is Ulaanbaatar, Mongolia, with an AQI of 158. While Mumbai city’s AQI is 158, ranking 10th. This is followed by Kolkata, where the air quality index is 136. 
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Meanwhile, Dhaka, the capital of Bangladesh, ranked 17th. The AQI reached 122. In this list, the air quality in seven Chinese cities was deemed very bad.
How bad is it?
Air pollution levels are often measured by the air quality index, or AQI. According to foreign standards, an AQI of more than 200 is considered “very poor” and an AQI of 300 is considered “severely poor”. Meanwhile, if the AQI level is between 0-50, it is considered good, if it is between 51-100, it is considered moderate, and if it is between 101-150, it is considered “poor” for sensitive groups Air”. However, if the AQI is between 151 and 200, it is considered “hazardous.” In addition to this, if the level found reaches 201-300, it is considered “very dangerous”, and if the level found exceeds 301, it is considered “very, very dangerous”.
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