VOV.VN - Air pollution in Hanoi showed no improvement on the morning of February 11, as the capital remained among the world's most polluted cities with an Air Quality Index (AQI) ranging from 151 to 200.

VOV.VN - Ho Chi Minh City, which is Vietnam’s economic and cultural hub, is grappling with increasingly severe air pollution these days, with its air quality index (AQI) value the second highest in the world.

Hanoi has set a target to ensure that up to 80% of the days in a year have air quality index (VN-AQI) levels rated as good or moderate, based on data from standard national and city monitoring stations.

VOV.VN - The Pollution Control Department, under the Ministry of Natural Resources and Environment, reported that the air quality index (AQI) in Hanoi reached over 200 at 18:00 p.m. on December 10.

VOV.VN - The air quality in Hanoi reached “very unhealthy” levels in the early morning of March 5, placing the capital at the top of the world’s most air polluted cities list.

VOV.VN - The Vietnamese capital ranked fourth among the top 100 worst air-polluted cities in the world on November 28, according to data released by Switzerland-based air quality monitor IQAir AirVisual.

VOV.VN - The morning of August 11 saw Hanoi engulfed in fog amid the air quality index (AQI) recording a bad level in the capital.

VOV.VN - Air quality in the capital was recorded at very unhealthy levels on January 5, exemplified by a thick haze that has blanketed the city.

VOV.VN - PAM Air monitoring stations in Hanoi reported that the Air Quality Index (AQI) in areas of the capital have reached hazardous levels, mostly in densely-populated areas near schools and kindergartens which have an adverse impact on the health of children and the elderly.

VOV.VN - The capital of Vietnam has been choked on unprecedentedly poisonous air over recent days with the air quality index (AQI) monitored at most sensor stations reaching an unhealthy level, even falling to a hazardous level in some places.