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The air quality in the area is not expected to be good on the 5th and 6th after the "bad" fine dust has been recorded in the Midwest and Honam areas on the 4th.
The National Institute for Environmental Research reported that the PM 2.5 concentration in the Seoul Metropolitan Area, Chungcheong Province and Honam was "low" at 36 / ㎥ or more. Particularly in some areas of Gyeonggi Province, the air quality was very poor because the maximum concentration of fine dust was 135 /.
The center predicted that even on the 5th, it would record a "fine" concentration of fine dust in the Midwest and Honam. Air Guard K, of Keegaard of WeatherWeeker, also predicted that ultra-fine dust would look "poor" in the western region and "once bad" in the rest of the region by May 5. The Midwest and Hunan should have fine dust once on June 6th.
The sudden obscuration of fine dust concentration is due to the accumulation of dust in the country due to lack of wind. A center official said: "The air currents have not been able to circulate on the Chinese side because of the strong pressure in the north-eastern region of China," he said. .
It is expected that the fine dust will fade after 7 days of rain. "The rain will be announced between the 7th and the 8th day in the whole country," said the official. "If the rain falls, the fine dust will flow naturally."
If the concentration of fine dust is "bad", it should be limited for a long time or excessive outdoor activities. Pay particular attention to outdoor activities in the morning and evening when the phenomenon of atmospheric mixing is low.
Cho Hyo-suk reporter [email protected]
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