New Delhi: According to a current study by World Health Organisation (WHO), Delhi is no more the most polluted city in the world.
 
WHO’s urban air quality database released on Thursday, now ranks Delhi as the 11th among 3,000 cities in 103 countries in terms of pollution.
 
The city of Zabol in Iran is the most polluted city in the world according to the WHO database. The cities of Gwalior and Allahabad in India stood a close second and third in terms of pollution levels.
 
Delhi being ranked at number 11 is a considerable improvement since 2014 when Delhi was ranked the most polluted city in terms of pollution levels.
 
Patna and Raipur rank 6th and 7th. A total of four Indian cities are among the world’s ten most polluted cities as per the current WHO study.
 
In its previous study WHO had monitored only 1600 cities, but this time it included 1400 more cities in the database.
 
The Chinese cities of Xintai and Baoding are placed 9th and 10th in the ranking with Beijing ranking far below at 56th. Beijing was 75th last time.
 
According to WHO’s Dr Carlos Dora, “It is crucial for city and national governments to make urban air quality a health and development priority.”
 
“When air quality improves, health costs from air pollution-related diseases shrink, worker productivity expands and life expectancy grows. Reducing air pollution also brings an added climate bonus, which can become a part of countries’ commitments to the climate treaty,” he added.
 
Executive director of Centre for Science and Environment (CSE) Anumita Roy Chowdhury said, “Delhi has improved. Ahmedabad has stabilized and Patna has worsened.”
 
Global trends since 2008 show air pollution levels have gone up by 8% despite improvements in many cities.