New Delhi:

Delhi continues to be wrapped in a blanket of smog, with the air quality in the “severe” category for the third consecutive day. With AQI 498, Delhi is the world’s second most polluted city, after Pakistan’s Lahore with AQI 770 recorded at 7 am. IQAir, a Swiss company, ranks major cities based on Particulate Matter 2.5 (PM2.5) data.

The top five polluted areas in Delhi this morning are Jahangirpuri (with AQI 458), Bawana (455), Wazirpur (455), Rohini (452), and Punjabi Bagh (443), according to Central Pollution Control Board’s Sameer App.

Delhi’s Palam and Safdurjung reported 500m and 400m visibilities respectively.

Low visibility due to smog has affected flight and rail operations across India. Several IndiGo flights to and from Amritsar are affected. Many SpiceJet flights to and from Delhi and Darbanga are running late.

Various trains are running late by over two hours. More than 25 trains arriving at New Delhi railway station are also delayed.  

With no respite in sight, all primary schools in Delhi have been moved online, Chief Minister Atishi announced in a post on X. She said the online classes for primary school children will continue “until further directions”.

Due to rising pollution levels, all primary schools in Delhi will be shifting to online classes, until further directions.

— Atishi (@AtishiAAP) November 14, 2024

On Thursday, the Commission for Air Quality Management (CAQM) enforced stage 3 of the Graded Action Response Plan (GRAP). Under GRAP 3, the following restrictions and measures have been imposed:

• A ban on non-essential construction and demolition work.
• A ban on the operation of BS-III petrol and BS-IV diesel four-wheelers in Delhi and parts of the NCR like Gurugram, Faridabad, Ghaziabad, and Noida.
• Restricted use of diesel generator sets for emergency purposes only. Industrial operations not running on fuels in the standard list of approved ones are banned.
• Intensified mechanized road sweeping and water sprinkling to suppress dust.
• Increasing public transport services and promoting off-peak travel through differential rates.
• Major welding and gas-cutting operations. Minor welding activities for MEP (Mechanical, Electrical and Plumbing) works are to be, however, permitted.
• Painting, polishing and varnishing works etc. Cement, Plaster / other coatings, except for minor indoor repairs/ maintenance. Cutting/grinding and fixing of tiles, stones and other flooring materials, except for minor indoor repairs/ maintenance. Waterproofing work (Excluding Chemical waterproofing).
• Movement of vehicles carrying construction materials on unpaved roads. Long-term exposure to “severe” AQI can affect even healthy people and seriously impact those with existing diseases. Doctors have cautioned people to stay indoors as much as possible as air pollution affects physical and mental well-being and can cause health problems ranging from respiratory issues to cardiovascular.

READ | GRAP 3 In Delhi Explained: What Is Banned, What Is Allowed

“We have been witnessing several gastrointestinal and metabolic conditions due to air pollution,” Dr. Sukrit Singh Sethi, Consultant – Gastroenterology, Hepatology & Liver Transplantation, Narayana Hospital, Gurugram told news agency IANS.

“The harmful particles and gases in polluted air, when inhaled, can lead to systemic inflammation and oxidative stress, which disturb gut health and impact the microbiome — the collection of trillions of bacteria in our intestines that play a critical role in digestion, immunity, and overall health,” Dr Sethi said.

The health experts recommend limiting outdoor activities during peak pollution times, typically in the early morning and evening; and using masks, especially in highly polluted environments.

READ | Construction Halted, Buses Restricted: Stricter Anti-Pollution Measures In Delhi

New Delhi:

Delhiites woke up to another smoggy morning with a thick layer of white blanket (smog) engulfing the city. The air quality index (AQI) at 6 am was recorded at 432, falling under the “severe” category”, according to the Central Pollution Control Board (CPCB). Low visibility due to heavy smog is likely to impact flights to and from various cities around Delhi. At 5:30 am, Amritsar and Pathankot airports in Punjab reported zero visibility. At 7 in the morning, visibility at Uttar Pradesh’s Gorakhpur airport dropped to zero. 

#WATCH | Delhi: A thick layer of smog engulfs the Gazipur as the air quality deteriorates to ‘Severe’ category in several parts of the national capital, as per Central Pollution Control Board (CPCB).

AQI in Anand Vihar is at 473 pic.twitter.com/QuiRz7LAtv

— ANI (@ANI) November 14, 2024

Earlier in the morning, Indigo posted a travel advisory on social media X (formerly Twitter), urging passengers to keep a tab on their flight status as some flights might be delayed due to “winter fog”.

“This morning, winter fog may impact flights to/from Amritsar, Varanasi & Delhi. Do keep a tab on your flight status before heading to the airport. Also, please allow additional travel time as road traffic may move slower than usual due to low visibility. Thank you for your patience, and we wish you a smooth journey,” it wrote.

#6ETravelAdvisory : This morning, winter fog may impact flights to/from #Amritsar, #Varanasi & #Delhi. Do keep a tab on your flight status https://t.co/CjwsVzFov0 before heading to the airport. Also, please allow additional travel time as road traffic may move slower (1/2)

— IndiGo (@IndiGo6E) November 13, 2024

A sharp spike in Delhi’s air pollution was witnessed in the past 24 hours with 30 out of 36 monitoring stations reporting severe air quality index.

Chandigarh, 250 km away from Delhi also reported a severe air quality index of 415

Smog chokes nearby Ghaziabad (AQI of 378), Noida (372), and Gurugram (323) with air quality plummeting to the “very poor” category.

Long-term exposure to “very poor” air quality can lead to respiratory. Whereas, severe AQI can affect even healthy people and seriously impact those with existing diseases.

Smog chokes Delhi and Chandigarh as Air Quality Index (AQI) hits ‘severe’ level at 6:30 am#AQI#DelhiAQI#AirPollution#Chandigarhpic.twitter.com/COTgnH5YmO

— NDTV (@ndtv) November 14, 2024

Owing to stronger winds, the pollutant concentration and thereby the AQI, is expected to start showing a declining trend from today onwards and the AQI is likely to move back to the “very poor” category, noted a report filed by the India Meteorological Department and IITM.

On Wednesday, the AQI turned “severe” for the first time this season. The Commission for Air Quality Management described “unprecedented extremely dense fog” as an “episodic event”.

It was decided to keep a close watch on the situation, before invoking the stringent measures under Stage-III of GRAP.