Abstract
The deposition velocities of sulfur dioxide and sulfate aerosols were measured by using a substitute surface technique. Acidic and neutral sand were used as substitute surfaces to distinguish the deposition of sulfur dioxide from that of sulfate aerosols with an expectation that the acidic sand should prevent SO2 gas from depositing on the substitute surface. The deposition velocity of sulfur dioxide was estimated as 0.77cm/sec which was well agreed with the previous studies, while 2.1cm/sec, which was estimated as a deposition velocity of falcate particles, was higher than those from previous studies.
