Investigation on Cherry Tree Leaves as an Indicator of Air Pollution by Polychlorinated Dibenzo-p-dioxins and Polychlorinated Dibenzofurans. Part II. Annual Fluctuation of PCDD/Fs in Plant Leaves and Relationships between PCDD/Fs Concentrations in Plant L
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The application of cherry tree leaves (<I>Cerasus yedoensis</I>) as a indicator for air pollution by PCDD/Fs was investigated. Adsorption and desorption rates of PCDD/Fs were in equilibrium between cherry tree leaves and ambient air during growing periods of cherry tree leaves. However, the concentrations of cherry tree leaves also varied slightly in the periods. This may be caused by the several conditions such as the temperature of ambient air. Consequently, the mean values of PCDD/Fs in the leaves determined in a long term (one month) was used in order to reduced the fluctuation of the concentration affected by the atmospheric conditions. As the results, high relationships between the concentration of PCDD/Fs in cherry tree leaves and in ambient air were obtained. Those results indicated that the concentrations of PCDD/Fs in cherry tree leaves reflected the ambient air concentration during growing periods of cherry tree leaves and cherry tree leaves are a useful indicator for air pollution monitoring of PCDD/Fs.
- 日本環境化学会の論文
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