Observations of attached aerosol and allergen of Japanese cedar pollen

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  • スギ花粉に付着したエアロゾルとアレルゲンの分析

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Abstract

<tt>Patients with hay fever caused by Japanese cedar pollen have increased in the urban regions of Japan, and air pollution might exacerbate their symptoms. We collected fresh and airborne cedar pollen particles and analyzed them for Cry j 1 and the attached aerosol component. The concentration of the cedar pollen allergen, Cry j 1, in the aerosol was found to increase with an increase in the cedar pollen concentration in the air, although the Cry j 1 concentration significantly varied due to unknown factors. We quantitatively determined the attached aerosol component by a microbeam scanning particle induced X-ray emission analysis. The concentrations of the elements deposited on the cedar pollen surfaces were found to correlate well with those of the aerosol in the atmosphere. The air pollutant might be attached to the pollen in the polluted air and the Cry j 1 distribution varied during the transport</tt><tt>. </tt>

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