Photo: Satellite image of thick smog hanging over Pakistan's Punjab region (file image)
Pakistan NewsLahore tops the world's most polluted cities again as smog pushes AQI past 350
Lahore ranked as the world's most polluted city again on Thursday, with the average air quality index reaching 338 and several neighbourhoods recording hazardous readings above 500, as the winter smog season tightens its grip on Punjab.
Photo: Severe air pollution over New Delhi seen from above (NASA file image)
NewsDelhi chokes under smog as air quality falls to 'very poor' ahead of Diwali, with farm fires across the border adding to the load
Delhi's average air quality index reached 330 on Tuesday morning, with eight monitoring stations above 400, as the region's pollution watchdog stepped up emergency curbs and smoke from farm fires in Pakistan's Punjab drifted across the border.