Chandigarh's Shaheed Bhagat Singh International Airport has experienced 89 flight cancellations over the past 10 days due to dense fog, with an orange alert in effect until January 6. Visibility dropped significantly, leading to disruptions and advisories for passengers. Concurrently, the city's air quality index improved to 'moderate' (114) for the first time since Christmas, attributed to recent rainfall. Isolated dense fog conditions are still anticipated in the region.