走査型電子顕微鏡による植物葉面付着砂塵質物質の観察

概要

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The atmospheric dusts adhered to leaves of plants which sampled mainly in Sapporo and Kushiro cities of Hokkaido were observed during 1983 to 1987 using SEM. A total of twentyone species summed five species of evergreen conifers, ten species of deciduous broad-leaved trees and six species of herbs were collected. Although the degree and quantity of the atmospheric dust adhered differed in different plant species, the phenomena such as physical destroy and deformation were not observed in their stomata. But, it is stressed that there is a strong possibility of physiological functional diseases resulting in the shutoff of ventilation. In the urban districts, the differences among the sampling stations were little recognized in respect to the degree and quantity of the adhered dust, but a marked tendency to increase from woodland far from big cities, through suburbs to urban areas was seen. The atmospheric dust adhered to the leaves of evergreen conifers which live in several years increased year after year. From this, such evergreen conifers could be used as indicator plants in the atmospheric dust pollution microscopically. And, it may safely be said that such evergreen conifers play an important role of environmental conservation in our urban life.
1987-08-17