| Budget Amount *help |
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2014: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2013: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
Fiscal Year 2012: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
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| Outline of Final Research Achievements |
We reported that absorption of environmental pollutants on various airborne pollen grains, aggravation of the allergenicity, may damage on the pollen cell wall. The airborne behavior of fine allergenic particles especially released from Cryptomeria japonica pollen were abundantly determined when sunny days after rainfall. From the result of rainfall sampling and analysis, it was indicated that a great number of pollens were trapped in precipitatiduring the initial rainfall. Many burst pollen grains were also observed in the rainwater when the Yellow Sand events. The fine allergenic particles such as fractions of cell wall and contents in pollen were released from burst of pollen grains. Allergenic contents was increased when contacted with a weakly basic solution during the season of Yellow Sand. We summarized the various studies for elucidation of scattering behavior of various pollens focused on Cryptomeria japonica pollen and its allergenic particles in urban atmosphere of Japan.
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