New Delhi: In the annual list of cities with the worst levels of air pollution in the world, cities of India have once again been at the top. In which Ghaziabad of UP has come first in this list. A total of 6 cities in the top-10 and 21 cities in the top-30 are also from India. This data of the World Air Quality Report-2019 has been prepared by the researchers of IQAir. In which this report is prepared every year. 22 cities of India were included in the top-30 polluted cities in the 2018 report. Shaheen Bagh's grandmother says, "Demonstrations are meant to live with respect, not die with fear" According to the new report, Ghaziabad of UP had an average PM 2.5 (μg / m³) - 110.2 in 2019, which was the worst in the world. After this, there are cities of China and Pakistan in the next three places, but as the list progresses, the number of cities of India has also seen increases in it. At the same time, 26 cities of India come in this list till the top-50. All the cities in the top-50 of this list are from Asian countries. The annual average of all these has been more than PM 2.5 (μg / m -) - 60. BJP president JP Nadda's son Girish got married to Prachi India ranks 5th among the polluted countries, while among the top 10 most polluted countries, all countries are Asian. In which India's place is 5th in it. India was ranked third last year. India's PM 2.5 (μg / m³) in 2019 was 58.08, which is 14.46 points less than in 2018. In the report, the reason for this improvement has been attributed to the economic slowdown. In this list, Bangladesh is on the first number and Pakistan is on the second number. The condition of South Asian countries, South East Asian countries and West Asian countries seems to be worst. In this part of the world, the level of air pollution is said to be the most disappointing. Attack in Syria again, 20 people died According to a 2018 report of the World Health Organization, every year, 6 lakh children below the age of 15 die every year due to diseases caused by pollution. At the same time, according to a 2016 report of the World Bank, the deaths of children due to air pollution cause a loss of $ 5 trillion in the world every year.