In 2014, World Health Organisation (WHO) declared Delhi as the most polluted in the city
in the world. From state government to central government, courts, environmentalists and everyone were worried about the quality of air in the city.
According to recent WHO’s urban air quality database, Delhi is not the most polluted city in the world anymore. It has shifted to 11th rank among 3,000 cities in terms of PM 2.5.
It is ranked 25th in terms of PM 10 (coarse pollution particles) level. As compared to 2104, this time WHO monitored 1400 more cities for its database.
Currently, Zabol in Iran is the most polluted city in the world. It is followed by Gwalior and Allahabad. Patna and Raipur rank 6th and 7th.
Experts say that Delhi’s efforts like Odd- Even scheme, ban on diesels cars, environment compensation charge on trucks and others have helped the city to reduce the air pollution.
“Delhi has improved. Ahmedabad has stabilized and Patna has worsened. We have seen that Delhi has managed to arrest the declining air quality trend in 2015. But, the levels are still very high in the city, it only shows that action has to be sustained to meet clean targets,”Anumita Roy Chowdhury, executive director, Centre for Science and Environment (CSE) told TOI