Air stagnation
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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 build up of particulates in urban areas under the ridge, leading to widespread haze.[1] If the low level relative humidity rises towards 100 percent overnight, fog can form.[2] In the United States, the National Weather Service issues an Air Stagnation Advisory when these conditions are likely to occur.[3]
References
- ^ Myanmar government (2007). Haze. Retrieved on 2007-02-11.
- ^ Robert Tardif (2002). Fog characteristics. University Corporation for Atmospheric Research. Retrieved on 2007-02-11.
- ^ National Weather Service glossary. Air Stagnation. Retrieved on 2008-05-31.
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