Abstract:The number concentrations for atmospheric aerosol and its daily variation were discussed by the data collected with a Wide-Range Particle Spectrometer (WPS) (manufactured by MSP. Ltc.) at the foot of Mount Huangshan (Zhaixi) from May to September, 2011. Obvious diurnal variation for atmospheric aerosol number concentrations was found in sunny days. The total aerosol number concentrations exhibited peak values at 6:00, 12:00 and 18:00. Human activities, turbulence and the mountain-valley wind were the main reasons for the daily variation. Excepted for the pollution periods mainly raised by traffic emission, the average total aerosol number concentrations decreased by 319 per cubic centimeter, and the decreased percentage for the daily average aerosol number concentrations was 12.17%. For particles within the size ranges of 0.01~0.02 μm,0.02~0.05 μm,0.05~0.1 μm,0.1~0.5 μm,0.5~1.0 μm,1.0~2.5 μm, their number concentrations decreased by 31.32%, 20.29%, 6.59%, 7.49%, 1.23%, 2.51%, respectively. It indicated that traffic emission mainly influenced the concentrations of particles in the size of 0.01~0.5 μm,which occupied 25.81%.
陈潇潇, 金莲姬, 朱靖民. 黄山山底大气气溶胶数浓度日变化[J]. 中国环境科学, 2013, 33(7): 1167-1173.
CHEN Xiao-Xiao, JIN Lian-Ji, ZHU Jing-Min. Daily variation of atmospheric aerosol number concentrations at the foot of Mount Huangshan. CHINA ENVIRONMENTAL SCIENCECE, 2013, 33(7): 1167-1173.