VOV.VN - Hanoi recorded hazardous air pollution levels on the evening of December 7, with fine particulate matter (PM2.5) spiking to 35 times the World Health Organisation’s recommended limit and the city briefly ranking as the world’s most polluted, according to air quality monitor IQAir.
VOV.VN - Air quality in Hanoi deteriorated sharply on the morning of November 30, with multiple monitoring stations reporting air quality index (AQI) readings above 200, the city’s worst levels since the start of winter.
VOV.VN - The air quality of Hanoi, the capital of Vietnam, reached an “unhealthy” level on October 7 morning, placing it at the top of the world’s most air polluted cities list.
VOV.VN - The capital experienced a day with very poor air quality on March 22, with the conditions seriously affecting human health, notably the elderly, children, and people suffering from respiratory diseases.
VOV.VN - The capital was placed second among the worst air-polluted cities in the world on March 4, according to data released by Switzerland-based air quality monitor IQAir AirVisual.