Title :
Variation Characteristics of Air Pollutant Concentrations during Typhoon Processes in Fuzhou
Author :
Lin, Wen ; Chen, Binbin ; Lin, Changcheng
Author_Institution :
Fujian Inst. of Meteorol. Sci., Fuzhou, China
Abstract :
The temporal and spatial distribution characteristics of PM10, SO2 and NO2 and the influence of meteorological conditions were analyzed based on the hourly observation data of air quality and concurrent meteorological data of 4 typhoon processes in 2005 and 2006 in Fuzhou. The results indicated that the air quality in Fuzhou during typhoon processes was better than sunny days. The concentration of PM10 cut down when there was heavy rain and gale. The elimination of SO2 was mainly affected by precipitation. The concentration of NO2 increased abruptly due to the reversion of wind direction and the reduction of wind speed, higher than the concentration in sunny days of the same time. In the center of typhoon, the concentration of PM10 and NO2 increased for downdraft making against the diffusion of pollutants, while the concentration of SO2 took little change for the existence of precipitation.
Keywords :
air pollution; atmospheric composition; atmospheric precipitation; storms; wind; AD 2005; AD 2006; China; Fuzhou; NO2; NO2 concentration; PM10; SO2; air pollutant concentrations; air quality; atmospheric precipitation; meteorological data; spatial distribution characteristics; temporal distribution; typhoon processes; wind direction; wind speed; Air pollution; Cities and towns; Electronic mail; Information analysis; Information technology; Meteorology; Solar radiation; Typhoons; Urban pollution; Wind speed;
Conference_Titel :
Multimedia and Information Technology (MMIT), 2010 Second International Conference on
Conference_Location :
Kaifeng
Print_ISBN :
978-0-7695-4008-5
Electronic_ISBN :
978-1-4244-6602-3
DOI :
10.1109/MMIT.2010.46
