SEOUL, March 27 (AJP) - An ultrafine dust advisory was issued for Seoul and surrounding areas on Friday, as heavy smog carried by northwesterly winds blanketed the capital, with fine dust levels exceeding 81 ㎍/㎥, according to the Korea Environment Corporation.
Such an advisory is issued when PM2.5 concentrations exceed 75 ㎍/㎥ for more than two consecutive hours.
The elderly, children, and those with respiratory or cardiovascular diseases are advised to refrain from outdoor activities. Even healthy adults are encouraged to limit time outdoors and wear masks when going outside.
Such an advisory is issued when PM2.5 concentrations exceed 75 ㎍/㎥ for more than two consecutive hours.
The elderly, children, and those with respiratory or cardiovascular diseases are advised to refrain from outdoor activities. Even healthy adults are encouraged to limit time outdoors and wear masks when going outside.
Ultrafine particles, roughly one-thirtieth the thickness of a human hair, can penetrate deep into the lungs without being filtered, posing serious health risks.
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