From encouraging the use of clean fuels to promoting cycling and restoring forest cover, countries have resorted to various methods to keep air pollution parameters under control.

Whatever the causes of the smog, by one ranking Delhi was not just the most polluted city in the world, but “nearly five times as bad as the second most polluted city, Dhaka,” in Bangladesh next door, as Shashi Tharoor, a leader of the opposition in Parliament and best-selling author, posted on X.

According to the Central Pollution Control Board (CPCB), the air quality in Delhi remained in the 'severe' category on Wednesday. The air quality in Delhi was classified as 'very poor' with an AQI of 301 according to the CPCB's measurement on Wednesday at 7am.

Several areas in Delhi continue to remain in the 'severe' category for air pollution, with notable pollution levels recorded in Ashok Vihar (316), Anand Vihar (311), ITO (316), Wazirpur (331), Vivek Vihar (318),

While AQI has marginally improved, the city continued to remain covered in dense smog in the early hours of the day

A dense layer of fog engulfed parts of Delhi as AQI remains in "very poor" category. (Express Photo) Delhi News Live Updates: The air quality in Delhi continued in “very poor”

New Delhi's air quality improved slightly on Wednesday by nearly reaching the 'poor' category from its previous status as 'very poor'.

Delhi's air quality remains in the 'severe' range, with some areas recording 'very poor' AQI. The CPCB reported varying AQI levels across the city. Schools have been directed to implement hybrid learning models due to the hazardous conditions,

Delhi's air quality remained stagnant in the "very poor" category on Tuesday, with experts warning that it may deteriorate to "severe" levels in the next 24 hours due to a change in wind patterns