15 Indian Cities with the Worst Air Quality Index Levels This Winter

Published By DPRJ Universal | Published on Wednesday, 5 November 2025

As winter begins, 15 cities in India are experiencing severe air pollution with AQI levels exceeding 300, classified as harmful even for healthy individuals. Delhi, Ghaziabad, and other industrial areas face very poor air quality worsened by Diwali smoke, vehicular emissions, and industrial pollution. In contrast, some cities maintain relatively clean air. Monitoring AQI via official platforms is crucial for public health protection during these high-pollution days.

The article highlights the worsening air quality situation across several Indian cities as winter sets in. Fifteen cities, including Thoothukudi (AQI 486), Siahar (468), and Kaithal (393), are recorded with AQI levels far beyond the 'severe' threshold of 300, indicating air that is hazardous to all individuals. The National Capital Region with New Delhi at an AQI of 309, along with industrial towns like Ghaziabad, Faridabad, and Noida, are particularly affected due to a combination of lingering Diwali firework pollution, vehicular emissions, industrial activities, and seasonal factors. This pollution not only reduces visibility and causes eye irritation but also poses serious health risks, necessitating the use of air purifiers and N95 masks. Conversely, cities such as Shillong, Ahmednagar, and Madurai experience much cleaner air with AQI often below 50. The article emphasizes the importance of tracking real-time AQI data through government and verified platforms like the Central Pollution Control Board, SAFAR, and global indices for timely action. It also explains AQI categorization: values above 300 are 'severe' and dangerous for everyone, reinforcing the need for urgent attention to air quality issues in highly polluted locations. The piece serves as both a current status report and a reminder of the environmental challenges India faces during winter months.