|Budget Amount *help
¥53,560,000 (Direct Cost : ¥41,200,000、Indirect Cost : ¥12,360,000)
Fiscal Year 2012 : ¥7,800,000 (Direct Cost : ¥6,000,000、Indirect Cost : ¥1,800,000)
Fiscal Year 2011 : ¥10,400,000 (Direct Cost : ¥8,000,000、Indirect Cost : ¥2,400,000)
Fiscal Year 2010 : ¥10,530,000 (Direct Cost : ¥8,100,000、Indirect Cost : ¥2,430,000)
Fiscal Year 2009 : ¥13,130,000 (Direct Cost : ¥10,100,000、Indirect Cost : ¥3,030,000)
Fiscal Year 2008 : ¥11,700,000 (Direct Cost : ¥9,000,000、Indirect Cost : ¥2,700,000)
The peaks of Japanese cedar (Cryptomeria japonica) pollen grains has been observed in Japan at the Yellow and (Kosa) events during the pollen scattering season. The pollen allergenic species distribute abundantly in fine particles in urban area released from coarse particles originated by the pollen grains. It is thought that those daughter allergenic particles are responsible for inducing asthma by breaking into lower respiratory tract. Therefore, it is necessary to clarify the release mechanism of the pollen allergenic species under air pollutants influence. In this study, we investigated the behavior of the pollen grains, its mall-sized allergenic species and allergenicity in the presence of ionic concentrations and pH values in rainwater during and after rainfall events.