Transportation
Presence drops in parts of Delhi as contamination rises
The harmful smog that has enveloped India's capital intensified on Wednesday morning as temperatures dropped and the seasonal winter season haze set in, minimizing exposure in some areas and perhaps impacting flights. Delhi overtook Pakistan's Lahore as the world's most polluted city in Swiss group IQAir's live rankings, with an air quality index (AQI) score of more than 1,000. The group categorizes readings above 301 as dangerous. The Indian capital battles serious pollution every winter season as cold, heavy air traps dust and emissions, along with smoke from illegal farm fires in the adjacent states of Punjab and Haryana. IQAir...