Study on Dry Deposition of SO_2-NO_X onto Loess
Source: Water, Air, and Soil Pollution, Volume 130, Numbers 1-4, August 2001 , pp. 541-546(6)
In order to obtain information on dry deposition of SO_2 onto loess in China, the effects of water vapor and NO_2 on SO_2 deposition-oxidation processes were investigated in laboratory measurements. The deposition velocities of SO_2 onto loess particles were 2.347.33 cm s^−1, were high in comparison with the other studies. Deposition of SO_2 onto the particles was decreased with exposed time and amounts of SO_2, but was influenced by adsorption of water vapor onto the particles. On the other hand, oxidation of SO_2 physically8 adsorbed was promoted by the coexistence of water vapor and NO_2. So, it was indicated that it was possible for water vapor and NO_2 in the atmosphere to play an important role in dry deposition for the deposition-oxidation interaction between SO_2 and loess particles.
Document Type: Regular paper
Affiliations: 1: Graduate School of Science and Engineering, Saitama University, 255 Shimo-ohkubo, Urawa, Saitama, 338-8570 Japan 2: National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki, 305-0053 Japan 3: Graduate School of Science and Engineering, Saitama University, 255 Shimo-ohkubo, Urawa, Saitama, 338-8570 Japan e-mail:email@example.com
Publication date: 2001-08-01