Which city of India was ranked as the world’s most polluted in the ‘World Air Quality Report 2019’ compiled by IQAir Air Visual?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. Ghaziabad.
According to the World Air Quality Report 2019 by IQAir AirVisual, Ghaziabad (in Uttar Pradesh, near New Delhi) was ranked as the most polluted city in the world. With an alarming average annual PM2.5 concentration of over 110 µg/m³, it topped the global list, ahead of other severely polluted urban areas. No other Indian city listed in your options (Kanpur, Jaipur, Varanasi) held this unenviable distinction in the 2019 report.