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.

VOV.VN - The Hanoi Natural Resources & Environment Department reported on November 2 that the air quality in the capital has improved greatly thanks to a recent cold air mass and an extended period of torrential rain.

VOV.VN - Air quality in Hanoi once again worsened to dangerous levels on October 27 after a period of maintaining a stable level, ranking third among the world's most polluted cities, only behind India and Pakistan.

VOV.VN - The air quality around Hanoi capital plunged to worse levels on June 6 due to a combination of post – rice harvest straw burning and hot temperatures.

The US’s experience in environmental management and air quality control in Vietnam were touched upon at a seminar in Hanoi on January 25.

How to improve air quality was the main topic of a seminar held in Hanoi on January 9 within the framework of a clean air project supported by the United States Agency for International Development (USAID).

VOV.VN - The capital is currently enduring the most hazardous level of air pollution since early winter, according to the monitoring application PAMAir.

VOV.VN - The air quality in the capital on December 7 exceeded the red-warning level, reaching purple, meaning that the air quality of the local atmosphere has reached a very unhealthy level for local residents.