Image source, Getty ImagesAir pollution is an annual problem in Delhi and large parts of northern India
- Published4 November 2026, 06:50 GMT
Delhi is once again battling worsening air pollution as the onset of winter brings a familiar deterioration in air quality to India's capital.
The city's air quality index (AQI) - which measures PM2.5, fine particulate matter that can clog lungs - has crossed 300, entering the "very poor" category and raising health concerns for millions of residents.
