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- Despite the air quality in many central and southern localities showing signs of improvement, several northern provinces saw elevated levels of air pollution on September 3, that could seriously impact human health, according to local air tracking stations.

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.

VOV.VN - Temperatures in Ho Chi Minh City and neighbouring areas reached between 35 and 37 degrees Celsius on March 18, with UV levels rising the a hazardous figure of 11+, according to meteorologists.

VOV.VN - The air quality in Hanoi sharply declined on the morning of March 8 to reach extremely unhealthy levels, exemplified by a thick layer of haze that is currently blanketing the capital.

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.

VOV.VN - The air quality in the capital has worsened to dangerous levels, with the air quality index (AQI) rising to between 154 and 155 at 8:00 a.m. on National Day.