1972 Volume 35 Issue 3 Pages 25-29
In this investigation, there were two purposses.
The one was a study on the lateral distribution of the deposited materials of tree in crossing road, and the other was the inflrences on the photosynthetic mechanism of the street trees of air pollution. The results obtained are as follows;
1. Total, ash, and tar deposited matehials of twenty camphor tree leaves decreased ordinally with the distances from crossing road. However, iead contents increaded.
2. Ash, tar, and burning materials were correlated to total materials positively. Lead was correlated to ash materials negatively.
3. A part of tar materials was ascertained as gasoline by gas-chromatography.
4. Photosynthetic and respirational mechaniem of the street trees leaves were influenced.
i In the washed normal leaf, respirator' was more vigorously.
ii Photosynthetic activity was ordinally changed as follows; washed normal leaf>normal leaf>washed polluted leaf>polluted leaf, Their ration were 3: 2: 1.2: 1
