Zee Media Bureau
New Delhi: As per a new study conducted by the World Health Organisation (WHO), the air in the national capital is laden with dangerous small particles of pollution, leapfrogging Beijing - the city which was once considered one of the most polluted.
As per various studies conducted, air pollution is the fifth largest killer in India.
The international organisation has measured that Delhi has the highest concentration of PM2.5 — particulate matters less than 2.5 microns— form of air pollution, which is considered most serious.
Thirteen of the dirtiest 20 cities were Indian, which included New Delhi, Patna, Gwalior and Raipur in the top four spots, while the Indian capital had an annual average of 153 micrograms of small particulates, known as PM2.5, per cubic metre.
Beijing was in 77th place with a PM2.5 reading of 56, little over one-third of Delhi`s pollution level, while at the cleaner end of the table, 32 cities reported a PM2.5 reading of less than 5 and three-quarters of those included Vancouver, Hafnarfjordur in Iceland and the other seven were American.
The database covers the period from 2008 to 2013, with the majority of values for the years 2011 and 2012.
(With Agencies inputs)