New Delhi's air still 'very poor' despite emergency measures

An anti-smog gun is used to control dust at a construction side in New Delhi, India, Thursday, Nov. 18, 2021. Air pollution remained extremely high in the Indian capital on Thursday, a day after authorities closed schools indefinitely and shut some power stations to reduce smog that has blanketed the city for much of the month. (AP Photo/Manish Swarup)
Caption
An anti-smog gun is used to control dust at a construction side in New Delhi, India, Thursday, Nov. 18, 2021. Air pollution remained extremely high in the Indian capital on Thursday, a day after authorities closed schools indefinitely and shut some power stations to reduce smog that has blanketed the city for much of the month. (AP Photo/Manish Swarup)

Credit: Manish Swarup

Credit: Manish Swarup

Air pollution remains extremely high in the Indian capital a day after authorities closed schools indefinitely and shut some power stations to reduce smog that has blanketed the city for much of the month

NEW DELHI (AP) — Air pollution remained extremely high in the Indian capital on Thursday, a day after authorities closed schools indefinitely and shut some power stations to reduce smog that has blanketed the city for much of the month.

New Delhi’s air quality remained “very poor,” according to SAFAR, India’s main environmental monitoring agency. The concentration of tiny airborne particles less than 2.5 microns in diameter — known as PM 2.5 — neared 300 micrograms per cubic meter in some parts of the city, it said.

The World Health Organization designates the maximum safe level as 25. The tiny particles can lodge in the lungs and other organs, causing long-term health damage.

New Delhi, a city of 20 million, is one of the world’s most polluted cities. Air quality often hits hazardous levels during the winter, when the burning of crop residue in neighboring states coincides with lower temperatures that trap smoke. The smoke travels to New Delhi, obscuring the sky.

Emergency measures went into effect on Wednesday in an attempt to stem the health crisis.

Schools were closed indefinitely and employees were asked to allow half of their staff to work from home for a week. Some coal-based power stations outside New Delhi were ordered to shut down and construction activities were halted.

The measures, however, are expected to have very little effect.

Meanwhile, the New Delhi state government is weighing whether to lock down the capital after India’s Supreme Court last week sought an “imminent and emergency” action plan to tackle the crisis.

The PM 2.5 concentration has soared to nearly 15 times above the WHO's safe level on many days in November and forecasters warn the pollution is likely to get worse in the coming days.

New Delhi's pollution woes are due to various causes.

Auto emissions contribute nearly 25% of the city’s pollution in the winter, according to the federal government. Other sources of air pollution include emissions from industries, smoke from firecrackers linked to festivals, construction dust and agricultural burning.

Several studies have estimated that more than a million Indians die each year from air pollution-related diseases.

In 2020, 13 of the world's 15 cities with the most polluted air were in India, according to the Swiss air quality monitoring company IQAir.

Traffic moves amid a blanket of smog, caused by a mixture of pollution and fog on the outskirts of New Delhi, India, Thursday, Nov. 18, 2021. Air pollution remained extremely high in the Indian capital on Thursday, a day after authorities closed schools indefinitely and shut some power stations to reduce smog that has blanketed the city for much of the month. (AP Photo/Altaf Qadri)
Caption
Traffic moves amid a blanket of smog, caused by a mixture of pollution and fog on the outskirts of New Delhi, India, Thursday, Nov. 18, 2021. Air pollution remained extremely high in the Indian capital on Thursday, a day after authorities closed schools indefinitely and shut some power stations to reduce smog that has blanketed the city for much of the month. (AP Photo/Altaf Qadri)

Credit: Altaf Qadri

Credit: Altaf Qadri

The skyline is seen enveloped in toxic smog in New Delhi, India, Thursday, Nov. 18, 2021. Air pollution remained extremely high in the Indian capital on Thursday, a day after authorities closed schools indefinitely and shut some power stations to reduce smog that has blanketed the city for much of the month. (AP Photo/Altaf Qadri)
Caption
The skyline is seen enveloped in toxic smog in New Delhi, India, Thursday, Nov. 18, 2021. Air pollution remained extremely high in the Indian capital on Thursday, a day after authorities closed schools indefinitely and shut some power stations to reduce smog that has blanketed the city for much of the month. (AP Photo/Altaf Qadri)

Credit: Altaf Qadri

Credit: Altaf Qadri

Traffic moves amid a blanket of smog, caused by a mixture of pollution and fog in New Delhi, India, Thursday, Nov. 18, 2021. Air pollution remained extremely high in the Indian capital on Thursday, a day after authorities closed schools indefinitely and shut some power stations to reduce smog that has blanketed the city for much of the month. (AP Photo/Altaf Qadri)
Caption
Traffic moves amid a blanket of smog, caused by a mixture of pollution and fog in New Delhi, India, Thursday, Nov. 18, 2021. Air pollution remained extremely high in the Indian capital on Thursday, a day after authorities closed schools indefinitely and shut some power stations to reduce smog that has blanketed the city for much of the month. (AP Photo/Altaf Qadri)

Credit: Altaf Qadri

Credit: Altaf Qadri

Delhi sky line is seen enveloped in toxic smog from a high rise building in New Delhi, India, Thursday, Nov. 18, 2021. Air pollution remained extremely high in the Indian capital on Thursday, a day after authorities closed schools indefinitely and shut some power stations to reduce smog that has blanketed the city for much of the month. (AP Photo/Shonal Ganguly)
Caption
Delhi sky line is seen enveloped in toxic smog from a high rise building in New Delhi, India, Thursday, Nov. 18, 2021. Air pollution remained extremely high in the Indian capital on Thursday, a day after authorities closed schools indefinitely and shut some power stations to reduce smog that has blanketed the city for much of the month. (AP Photo/Shonal Ganguly)

Credit: Shonal Ganguly

Credit: Shonal Ganguly

A couple walks past crop stubble set on fire by farmers on the out skirts of Jalandhar, in the northern Indian state of Punjab, Wednesday, Nov. 17, 2021. New Delhi, a city of 20 million, is one of the world’s most polluted cities. Air quality often hits hazardous levels during the winter, when the burning of crop residue in neighboring states coincides with lower temperatures that trap smoke. The smoke travels to New Delhi, obscuring the sky. (AP Photo)
Caption
A couple walks past crop stubble set on fire by farmers on the out skirts of Jalandhar, in the northern Indian state of Punjab, Wednesday, Nov. 17, 2021. New Delhi, a city of 20 million, is one of the world’s most polluted cities. Air quality often hits hazardous levels during the winter, when the burning of crop residue in neighboring states coincides with lower temperatures that trap smoke. The smoke travels to New Delhi, obscuring the sky. (AP Photo)

Credit: Uncredited

Credit: Uncredited

A farmer stands by crop stubble set on fire on the out skirts of Jalandhar, in the northern Indian state of Punjab, Wednesday, Nov. 17, 2021. New Delhi, a city of 20 million, is one of the world’s most polluted cities. Air quality often hits hazardous levels during the winter, when the burning of crop residue in neighboring states coincides with lower temperatures that trap smoke. The smoke travels to New Delhi, obscuring the sky. (AP Photo)
Caption
A farmer stands by crop stubble set on fire on the out skirts of Jalandhar, in the northern Indian state of Punjab, Wednesday, Nov. 17, 2021. New Delhi, a city of 20 million, is one of the world’s most polluted cities. Air quality often hits hazardous levels during the winter, when the burning of crop residue in neighboring states coincides with lower temperatures that trap smoke. The smoke travels to New Delhi, obscuring the sky. (AP Photo)

Credit: Uncredited

Credit: Uncredited

A worker uses an anti-smog gun to control dust at a construction side at the landmark India Gate monument in New Delhi, India, Thursday, Nov. 18, 2021. Air pollution remained extremely high in the Indian capital on Thursday, a day after authorities closed schools indefinitely and shut some power stations to reduce smog that has blanketed the city for much of the month. (AP Photo/Manish Swarup)
Caption
A worker uses an anti-smog gun to control dust at a construction side at the landmark India Gate monument in New Delhi, India, Thursday, Nov. 18, 2021. Air pollution remained extremely high in the Indian capital on Thursday, a day after authorities closed schools indefinitely and shut some power stations to reduce smog that has blanketed the city for much of the month. (AP Photo/Manish Swarup)

Credit: Manish Swarup

Credit: Manish Swarup