Local Stations Top 480 as Northern India Dominates Global Pollution Rankings
New Delhi became the world's most polluted major city on Friday as thick winter smog blanketed the metropolis of roughly 20 million people. According to Swiss air quality tracker IQAir, Delhi's Air Quality Index reached 334, placing the capital in the hazardous category and surpassing Lahore in neighboring Pakistan.
According to Reuters, The Hindu, and NDTV on Friday, ground monitoring stations across the capital recorded readings well above the citywide average. IIT Delhi logged the highest reading at 487, followed by Chandni Chowk and Delhi University's North Campus at 476. In broader post-Diwali tracking cited by Vajiram & Ravi, between 93 and 99 of the world's 100 most polluted cities were located in India. Lahore ranked ninth globally with an AQI of 446, making the Pakistani metropolis the sole non-Indian city inside the top ten. Across neighboring northern states, Sri Ganganagar in Rajasthan recorded an extreme AQI of 868, while Faridkot and Bathinda in Punjab hit 842 and 797 respectively.
Between October and January each year, colder temperatures, weak winds, and atmospheric temperature inversions trap pollutants close to the ground across Punjab, Haryana, Uttar Pradesh, and Rajasthan, while vehicle exhaust, industrial emissions, construction dust, and seasonal crop-residue burning combine to push fine particulate concentrations into hazardous ranges across the Indo-Gangetic Plain. Dawn reported this week that Punjab provincial officials in Pakistan insisted smog is not a political issue and urged cooperative regional action to curb shared emissions.
NDTV reported Friday that lost working hours, employee sick leave, and rising medical expenses represent an estimated $85 billion annual productivity drag across the Indian economy. According to The Hindu and NDTV, residents in densely populated neighborhoods relied on indoor air purifiers and protective masks while outdoor workers faced prolonged exposure.
