Study on Dry Deposition of SO2-NOX onto Loess
Study on Dry Deposition of SO2-NOX onto Loess
复制标题
SO2-NOX在黄土上干沉降的研究
DOI：
10.1023/a:1013834729728
复制
发表时间：
2001
期刊：
影响因子：
--
通讯作者：
K. Sakamoto
中科院分区：
文献类型：
--
作者：
A. Sorimachi;M. Sakai;O. Ishitani;M. Nishikawa;K. Sakamoto
为了获得SO2在中国黄土上干沉积的信息，通过室内测量，研究了水汽和NO2对SO2沉积-氧化过程的影响。SO2在黄土颗粒上的沉积速度为2.34~7.33 cm，S−1，与其他研究结果相比较高。SO2在颗粒上的沉积随暴露时间和SO2用量的增加而减少，但受颗粒上水蒸气吸附的影响。另一方面，水蒸气和NO2的共存促进了物理吸附的SO2的氧化。因此，大气中的水汽和NO2可能在SO2与黄土颗粒之间的沉积-氧化作用中起着重要的作用。
In order to obtain information on dry deposition of SO2onto loess in China, the effects of water vapor and NO2on SO2deposition-oxidation processes were investigated in laboratory measurements. The deposition velocities of SO2onto loess particles were 2.34–7.33 cm s−1, were high in comparison with the other studies. Deposition of SO2onto the particles was decreased with exposed time and amounts of SO2, but was influenced by adsorption of water vapor onto the particles. On the other hand, oxidation of SO2physically8 adsorbed was promoted by the coexistence of water vapor and NO2. So, it was indicated that it was possible for water vapor and NO2in the atmosphere to play an important role in dry deposition for the deposition-oxidation interaction between SO2and loess particles.