Understanding Air Quality Index and Its Impact in India
Understanding Air Quality Index and Its Impact in India
Global · Published Oct 14, 2026
• Air Quality Index (AQI) measures pollution levels and their health impacts.
• Learn how AQI values affect vulnerable groups and practical steps to reduce exposure during poor air quality days.

Air Quality Challenges in New Delhi

New Delhi often experiences poor to hazardous air quality, especially during certain seasons. For instance, an AQI of 151, categorised as 'Poor', indicates moderate health risks for sensitive groups such as children, the elderly, and individuals with respiratory or heart conditions. Pollutants like PM2.5 and PM10, measured at 69 µg/m³ and 147 µg/m³ respectively, contribute significantly to air pollution. Ozone and NO2 levels also add to the pollution load, exacerbating respiratory discomfort.

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