Abstract:A regional air quality model system (RAQMS) was used to investigate the temporal and spatial variations of PM10 in East Asia during March 2010, and the dust storm broken out on 19 to 23 March. Simulation results were compared with surface PM10 observations in 16 Chinese cites. Comparison analysis showed that the model was able to reproduce the temporal and spatial distributions of PM10 as well as the evolution of the dust storm reasonably well. Correlation coefficient was 0.705 between all observational and simulated pairs. The observed and simulated monthly concentrations averaged over all sites were 124.8 and 165.5mg/m3, respectively. Model results also indicated that during March 2010 East Asia experienced high PM10 level with dust aerosol as the dominant component. Of the total dust emission (110.4Mt), about 68% was redeposited onto the underlying surface.
李嘉伟, 韩志伟, 张仁健. 2010年春季东亚地区沙尘气溶胶和PM10的模拟研究[J]. 中国环境科学, 2011, 31(10): 1600-1608.
LI Jia-Wei, HAN Zhi-Wei, ZHANG Ren-Jian. Simulation study on dust aerosol and PM10 in East Asia during spring 2010. CHINA ENVIRONMENTAL SCIENCECE, 2011, 31(10): 1600-1608.