- By Aditya Jha
- Tue, 25 Nov 2025 11:43 PM (IST)
- Source:JND
Air Pollution: Amid worsened air quality in Delhi, a research study revealed that the national capital is the most polluted region in the country. As per a study by the Center for Research on Energy and Clean Air (CREA), the annual average PM 2.5 level in Delhi reached 101 micrograms per cubic meter, which is two and a half times the Indian standard and 20 times the World Health Organisation (WHO) limit. The study also suggested that the bad air quality has several impacts on the residents, including poor visibility and impact on health. The India Meteorological Department (IMD) on Tuesday stated that the air quality of the national capital is not likely to improve in the upcoming days.
The CREA study also revealed that 60 per cent of the districts of India have PM 2.5 levels above the national standard. It further revealed that several districts, including Haryana, Tripura, Assam, Bihar, West Bengal, Punjab, Meghalaya, and Nagaland, have also exceeded the national standard.
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The study also suggests that 11 districts of Delhi are the major contributors in the list of the most polluted cities. Apart from the national capital, 11 districts are from Assam, seven from Haryana, seven from Bihar, four from Uttar Pradesh, three from Tripura, two from Rajasthan, and two from Bengal.
CREA Study: 10 Most Polluted States
Delhi - 101 micrograms per cubic meter
Chandigarh - 70 micrograms per cubic meter
Haryana - 63 micrograms per cubic meter
Tripura - 62 micrograms per cubic meter
Assam - 60 micrograms per cubic meter
Bihar - 59 micrograms per cubic meter
West Bengal - 57 micrograms per cubic meter
Punjab - 56 micrograms per cubic meter
Meghalaya - 53 micrograms per cubic meter
Nagaland - 52 micrograms per cubic meter
The health ministry has suggested the residents of Delhi and nearby cities to limit their outings and wear masks during outdoor activities to avoid inconveniences.
