Lahore has been ranked at the top of global pollution charts with an Air Quality Index (AQI) of more than 300, according to ...

Hanoi has been ranked second with India’s capital New Delhi still holding the first rank in terms of worst AQI index and becoming the most polluted.

The severity of the crisis has left Tehran, home to more than 15 million residents, the world's most polluted city. Tehran ...

Lahore once again topped the global ranking of the world's most polluted cities on Tuesday, as toxic smog and dense fog continued to blanket large parts of Punjab, severely reducing visibility and ...

Hanoi's air quality index reached 174 by 2 PM, placing the city among the 10 most polluted in the world today.

This city has topped the global pollution charts once again, recording an alarming AQI of 353 according to IQAir. While cities like Delhi and Mumbai often dominate pollution discussions, it is this ...

HANOI, Vietnam — Hanoi has no horizon. Blocky apartment towers dissolve into gray fog in the Vietnamese capital, as barges carrying sand inch down the Red River toward makeshift jetties. At street ...

LAGOS, Nigeria (AP) — Nigerian shop manager Olarewanju Ogunbona says he uses Styrofoam and plastic packs at least five times a day — nothing unusual in the megacity of Lagos, one of the world’s most ...

Some countries are known for having dangerously high pollution levels, poor sanitation, and large amounts of unmanaged waste. These problems are usually caused by overpopulation, industrial activity, ...