Hanoi’s geographical and climatic features exacerbate the problem. The city is surrounded by high mountains to the west, with ...

The World Bank's 2022 report reveals that Hanoi faces dangerously high levels of PM2.5 pollution, largely from industrial, ...

Thick smog blanketed Hanoi on Friday, obscuring buildings and leaving nine million residents choking on toxic air as the Vietnamese capital topped a list of the world's most polluted major cities.

weather systems can also worsen smog conditions in the short-term. Jung-Eun Chu, a climate scientist also at the City University of Hong Kong, said a tropical depression southeast of Vietnam the ...