Investigations on meteorological conditions for elevated PM2.5 in Fairbanks, Alaska

The relationships between meteorological conditions (temperature, wind-speed and direction, relative humidity, surface-inversion depth and strength, and stability) and PM2.5 concentrations in Fairbanks, Alaska were investigated using ten years of observational data. The results show that during wint...

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Veröffentlicht in:Atmospheric research 2011, Vol.99 (1), p.39-49
Hauptverfasser: TRAN, Huy N. Q, MÖLDERS, Nicole
Format: Artikel
Sprache:eng
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Zusammenfassung:The relationships between meteorological conditions (temperature, wind-speed and direction, relative humidity, surface-inversion depth and strength, and stability) and PM2.5 concentrations in Fairbanks, Alaska were investigated using ten years of observational data. The results show that during wintertime (November through February) PM2.5 concentrations exceeding the 24h National Air Quality Standard (35 mu g/m super(3)) occurred under calm wind, extremely low temperature ( less than or equal to 20 degree C) and moisture (water-vapor pressure 75%) partly caused by water-vapor emission reduces PM2.5 concentrations.
ISSN:0169-8095
1873-2895
DOI:10.1016/j.atmosres.2010.08.028