Vietnam’s Hanoi Has Lowest Quality Air, Says AirVisual
According to AirVisual, an independent provider of global air pollution information, the level of dangerously small particles known as PM2.5 was measured at 266 micrograms per cubic meter in Hanoi, Vietnam, this morning, placing Hanoi at the top of their list of the most polluted cities. Government officials in Vietnam, who have been drawing attention […]