Lao Dong's records show that many areas in Ho Chi Minh City are submerged in thick fog, and many high-rise buildings are obscured by the fog.
"I see the sky is quite hazy today, normally this phenomenon only appears in the morning but today it lasts all day" - Mr. Ngoc Thien, living in District 10 shared.
On the air monitoring application Air Visual (belonging to IQAir, which owns a huge amount of aggregated data on air quality, headquartered in Switzerland) at 4:45 p.m., it showed that many areas in Ho Chi Minh City had unhealthy air quality measuring points reaching the threshold of 165.
Notably, the concentration of PM2.5 fine dust in Ho Chi Minh City is 76µg/m³, currently 15.2 times higher than the value according to WHO's annual air quality guidelines.
Mr. Le Dinh Quyet, Head of Hydrometeorological Forecasting Department, Southern Hydrometeorological Station said that at the end of the year, cold air diffuses deep to the South, causing air temperature to decrease.
In areas with small-scale disturbances, the sky is full of low-level clouds, the sun is covered by low-level clouds, so a layer of fog forms and takes a long time to dissipate. This leads to the phenomenon of fog. In addition, the cause of dry fog is also due to air pollution.
People must cover up carefully when going out, wear sunglasses and masks to ensure health.
