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Air stagnation : ウィキペディア英語版 | Air stagnation Air stagnation is a phenomenon which occurs when an air mass remains over an area for an extended period. Due to light winds and lack of precipitation, pollutants cannot be cleared from the air, either gaseous (like ozone) or particulate (like soot or dust). Subsidence produced directly under the subtropical ridge can lead to a buildup of particulates in urban areas under the ridge, leading to widespread haze.〔Myanmar government (2007). (Haze. ) Retrieved on 2007-02-11.〕 If the low level relative humidity rises towards 100 percent overnight, fog can form.〔Robert Tardif (2002). (Fog characteristics. ) University Corporation for Atmospheric Research. Retrieved on 2007-02-11.〕 In the United States, the National Weather Service issues an ''Air Stagnation Advisory'' when these conditions are likely to occur.〔National Weather Service glossary. (Air Stagnation. ) Retrieved on 2008-05-31.〕 ==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Air stagnation」の詳細全文を読む
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