Delhi's Air Quality Slips to 'Poor', Minimum Temperature at 9.1°C

• Delhi's air quality deteriorated to the 'poor' category on Monday after a brief respite.
• The Air Quality Index (AQI) was recorded at 216, worsening from Sunday's 189.
• 25 monitoring stations reported 'poor' air quality, while 12 showed 'moderate' levels.
• Minimum temperature at Safdarjung was 9.1 degrees Celsius, slightly above normal.
• Maximum temperature expected around 23 degrees Celsius with cloudy skies and haze.