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The Director General of the Pollution Control Department explained Pattaya covered in white fog. What exactly? Revealed this kind of phenomenon It can happen again
On November 21, Mr. Attapol Charoensa, Director General of the Department of Pollution Control The Ministry of Natural Resources and Environment said that, according to the news in the eastern region of the Gulf of Thailand, a thick fog was encountered. Making people worry that there is a very high amount of PM2.5 dust covering that area
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From monitoring and data analysis by the Air Pollution Solution Center (ERA), it was found that during this period cold air masses covered the upper part of Thailand. Shock with the hot southern monsoon air masses that cover the Gulf of Thailand is moderate. Along with high humidity in coastal areas, especially Pattaya
Yesterday (November 20, 2020) it had a relative humidity of 70-90% (inaccurate for the relatively dry winter), which gave it a foggy appearance, covering a wide area and visibility. It is sometimes confused with the dense dust cover. But as the ground air warms up, the fog will disappear. This phenomenon can happen again. Because it is a natural phenomenon
Attapon went on to say that for PM 2.5 measurement, if it is a portable air quality monitor, you may have a chance to see that the air quality is quite exaggerated. This is because a portable air quality monitor can read water vapor as dust values. And there is no system to remove moisture from the air sample before reading. This makes dust readings in areas with high humidity higher than those measured with the standard method.
However, the Department of Meteorology forecast the next 24 hours. An area of high pressure or weak cold air mass covers the upper part of Thailand and the South China Sea. But it still makes the top of Thailand cool and foggy in the morning Doi and Phu peak. It’s cold to cold. While the east wind blows the moisture to cover As for the Gulf of Thailand and south, the eastern waves move to cover the east and south.
“This can track air quality data PM2.5 volume forecast, including advice Various knowledge About air pollution From fan page The Air Pollution Correction Center (ERA) reported on the 1650 Pollution Report Hotline, ”said Mr Attaphon.
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