The Northern Plains, home to 540.7 million people across seven states, is the most polluted region in India yet

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.

Authorities fail to address over 2,300 air pollution complaints in Delhi, Rajasthan faces higher unresolved rate as per CPCB data

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.

The AQI in Delhi has reached 394, placing it in the very poor category. Contributing factors include stagnant winds and low temperatures, leading to a hazardous air quality level that has prompted stricter pollution control measures.

The wind speeds remained below six kilometres per hour throughout Monday, leading to stagnation and gradual build-up of local pollutants in the national Capital

Delhi's air quality slightly improved to 'very poor' on Tuesday morning, with an AQI of 382, after experiencing 'severe' levels the previous week. Schools are instructed to operate in a hybrid mode (online and offline) for all classes until further notice,

Delhi's air quality worsened again, reaching a 'very poor' AQI of 396 after a brief improvement. The Supreme Court criticized the government's implementation of GRAP curbs. Schools in Delhi-NCR are to continue hybrid learning,

The AQI in Delhi dropped to ‘very poor’ category by Monday evening due to low winds and continued to be at the same level on Tuesday morning.