Delhi's AQI 494 or 1,600? What's with the difference and which is more accurate

Delhi experienced alarming air pollution levels on Monday. The city's air quality index (AQI) reached 494, the second-highest recorded value. While international platforms reported even higher figures, both measurements indicated hazardous air quality. The discrepancy arises from different AQI scales and calculation methods. Despite the variations, Delhi's air pollution posed significant health risks.