The 'world's most polluted city' that 25m tourists a year visit anyway
Although the city's air pollution weighs down on its residents, Hanoi, Vietnam, attracted a record 25 million visitors last ...
Sun Star26d
Vietnam’s capital Hanoi tops list of world’s most polluted city
Data from AirVisual, an independent provider of global air pollution figures, showed the PM2.5 concentration in the air was “currently 13.2 times” the World Health Organization’s annual guideline ...
Anadolu Ajansi27d
Vietnamese capital Hanoi tops list of world’s most polluted city
Data from AirVisual, an independent provider of global air pollution figures, showed the PM2.5 concentration in the air was “currently 13.2 times” the World Health Organization’s annual ...