Ho Chi Minh City sky is hazy, fine dust exceeds standards

TPO – From morning to noon on September 11, opaque white fog appeared in many places in Ho Chi Minh City. Meanwhile, the concentration of fine dust in the air also exceeded the allowable level by about 4.1 times.

On the morning of September 11, the sky in Ho Chi Minh City was cloudy, with weak sunlight and fog covering many places.

According to the reporter's records, many high-rise buildings "hidden" behind the opaque fog. The image was recorded in Ward 16, District 8.

Fog appears from high altitude to ground level.

Image on Vo Van Kiet Street (District 8) on the morning of September 11.

Cha Va bridge area (connecting district 5 with district 8) at 8:00 a.m. on October 24.

Referencing the air monitoring application Air Visual (belonging to IQAir, which owns a large amount of aggregated data on air quality, headquartered in Switzerland), it shows that many areas in Ho Chi Minh City have average air quality measurement points on the morning of September 11.

Specifically, according to Air Visual, by 8:30 a.m. on September 11, the concentration of fine dust PM 2.5 in Ho Chi Minh City reached about 20.5µg/m³ (the allowable level is about 5 µg/m³).

“The concentration of fine dust PM2.5 in Ho Chi Minh City is currently 4.1 times higher than the value according to the annual air quality guidelines of the World Health Organization (WHO),” the application said.

Ms. Le Thi Xuan Lan (former deputy head of the forecasting department of the Southern Hydrometeorological Station) said that the fog formed because it had rained in the Ho Chi Minh City area in recent days, so the humidity was high. At night, the temperature dropped, causing water vapor to condense. In the morning, the weak sunshine caused fine dust to float in the air, creating fog.

“Fog shows that the air quality is not good. Fine dust is suspended at low altitudes, so people need to wear masks and sunglasses when moving to protect their health,” Ms. Lan advised.

According to the National Center for Hydro-Meteorological Forecasting, today (September 11), Ho Chi Minh City and the southern provinces and cities will have clouds, scattered showers and thunderstorms; in the afternoon and evening, scattered showers and thunderstorms, locally heavy rain. The lowest temperature is from 24-27 degrees Celsius, the highest is from 31-34 degrees Celsius, some places are over 34 degrees Celsius.

On the afternoon and evening of September 11, in the area from Da Nang to Binh Thuan, there will be scattered showers and thunderstorms, locally heavy rain; in the Central Highlands and the South, there will be showers and thunderstorms, locally heavy rain with rainfall from 10-30mm, locally over 60mm. During thunderstorms, there is a possibility of tornadoes, lightning and strong gusts of wind.

During the day and night tomorrow (September 12), the Southern region will have scattered showers and thunderstorms, with heavy rain in some places.

Huynh

Source: https://tienphong.vn/bau-troi-tphcm-mit-mu-bui-min-vuot-chuan-post1671968.tpo