Cloudy area in Hanoi, no rain, early in the morning with fog and light fog, afternoon noon sun. Southeast wind level 2-3, early morning and cold night.
Experts explain that Hanoi has a higher air pollution index at night, mainly due to the heat and calm winds that make it difficult for the air to diffuse to rise.
Information is published at the youth nuclear science and technology conference of the fifth atomic energy sector, held on October 3-4 in Hanoi.
The annual average air pollution index in Hanoi is 4 times higher than the acceptable level according to the World Health Organization (WHO).
Before the information of the General Department of Environment monitoring mercury in the air in Hanoi, experts warned that people could not neglect because mercury is extremely