New Delhi is world's most polluted capital for third straight year: study

Published March 16, 2021
general view of the Lodhi Garden on a smoggy morning in New Delhi, India in this Dec 23, 2020, file photo. — Reuters
general view of the Lodhi Garden on a smoggy morning in New Delhi, India in this Dec 23, 2020, file photo. — Reuters

New Delhi was the world’s most polluted capital for the third straight year in 2020, according to IQAir, a Swiss group that measures air quality levels based on the concentration of lung-damaging airborne particles known as PM2.5.

India was home to 35 of the world’s 50 most polluted cities, according to IQAir’s 2020 World Air Quality Report, which gathered data for 106 countries.

The findings were based on the country’s annual average of particulate matter PM2.5, airborne particles with less than 2.5 microns in diameter. Prolonged exposure to PM2.5 can lead to deadly diseases, including cancer and cardiac problems.

In 2020, New Delhi’s average annual concentration of PM2.5 in a cubic meter of air was 84.1, the study said, more than double the level of Beijing, which averaged 37.5 during the year, making it the 14th most polluted city in the world.

Air pollution caused an estimated 54,000 premature deaths in New Delhi in 2020, according to a recent study by Greenpeace Southeast Asia Analysis and IQAir.

Despite an 11 per cent reduction in the annual average of PM2.5 levels due to nationwide coronavirus lockdown curbs imposed last year, India emerged as the world’s third most polluted country after Bangladesh and Pakistan.

“Air pollution in India is still dangerously high,” the report said.

In 2020, South Asia endured some of the world’s worst air quality on record, it said.

Last year, Delhi’s 20 million residents, who breathed some of the cleanest air on record in summer months due to the lockdown curbs, battled toxic air in winter, following a sharp increase in farm fire incidents in the neighbouring state of Punjab.

As the burning of crop stubble peaked, Delhi’s PM2.5 levels averaged 144 micrograms per cubic metre in November and 157 micrograms per cubic metre in December, exceeding the World Health Organisation’s annual exposure guideline by more than 14 times, it said.

Opinion

Editorial

KP’s ‘power struggle’
Updated 21 Jun, 2024

KP’s ‘power struggle’

Instead of emboldening protesters, CM Gandapur should encourage his provincial subjects to clear their due bills and ensure theft is minimised.
Journalist’s murder
21 Jun, 2024

Journalist’s murder

ANOTHER name has been added to the list of journalists murdered in Pakistan. On Tuesday, Khalil Jibran’s vehicle...
A leaner government?
21 Jun, 2024

A leaner government?

FINANCE Minister Muhammad Aurangzeb has reiterated his government’s ‘commitment’ to shutting down ministries...
Kindness needed
Updated 20 Jun, 2024

Kindness needed

This year’s World Refugee Day theme — solidarity with refugees — includes keeping our borders accessible and addressing the hurdles they face.
Fitch’s budget note
20 Jun, 2024

Fitch’s budget note

PAKISTAN’S ongoing economic crisis is multifaceted. At one end, the government must pursue stabilisation policies...
Cruelty to animals
20 Jun, 2024

Cruelty to animals

TWO recent incidents illustrate the immense cruelty many in this country subject voiceless animals to. In the first...