TPO - In recent days, Ho Chi Minh City has continuously experienced fog in the morning, with fine dust concentrations exceeding the permissible level many times.
TPO - In recent days, Ho Chi Minh City has continuously experienced fog in the morning, with fine dust concentrations exceeding the permissible level many times.
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Fog on National Highway 1 (section through Binh Tan District, Ho Chi Minh City) on the morning of November 24. Photo: Huu Huy |
In recent days, fog has continuously appeared in the early mornings of Ho Chi Minh City. According to the reporter's records, on the morning of November 24, the weather in Ho Chi Minh City was cool, with weak sunlight, cloudy skies and fog in many places. In the western part of Ho Chi Minh City, high-rise buildings were submerged in hazy fog.
Smog has been occurring in Ho Chi Minh City in recent days. According to the air monitoring application Air Visual (belonging to IQAir, which owns a large amount of aggregated data on air quality and is headquartered in Switzerland), many areas in Ho Chi Minh City have air quality measurement points that are not good for health. These measurement points are in Binh Tan, Go Vap districts and Binh Chanh, Hoc Mon districts, etc.
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Opaque white fog obscures high-rise buildings in the western area of Ho Chi Minh City. Photo: Huu Huy. |
According to the Air Visual application, the concentration of fine dust PM 2.5 in Ho Chi Minh City at noon today (November 24) was 33.9µg/m³ (the allowable level is about 5 µg/m³).
"The concentration of fine dust PM 2.5 in Ho Chi Minh City is currently 6.8 times higher than the value according to WHO's annual air quality guidelines" - Air Visual informed.
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On Vo Van Kiet Street (intersection with National Highway 1, Binh Tan District). Photo: Huu Huy |
According to meteorologists, fog is formed due to high humidity, at night the temperature drops so the water vapor condenses. Weak winds cause the suspended particles in the air not to rise high, but to remain at low levels. Therefore, the suspended particles act as nuclei for tiny water vapor particles to adhere to. These particles gradually grow larger to form fog.
Heavy fog indicates poor air quality, with fine dust suspended in the air at low altitudes. Therefore, people should wear masks and sunglasses when going out to protect their health and prevent respiratory diseases caused by fine dust.
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Fog at Lo Gom bridge (District 6, HCMC). |
Today (November 24), the weather in the South is cloudy, sunny during the day, with showers and thunderstorms in some places in the evening and at night. The lowest temperature is from 23-26 degrees Celsius, the highest is from 31-34 degrees Celsius.
According to the Southern Hydrometeorological Station, in the last days of November, the weather in the Southern region will have little rain, with some places experiencing showers in the afternoon, evening and night. After these last rains of the season, from the beginning of December, the Southern region will end the rainy season and enter the dry season.
Source: https://tienphong.vn/tphcm-lien-tuc-xuat-hien-suong-mu-bui-min-gap-68-lan-muc-cho-phep-post1694381.tpo
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