抄録
Field measurement of nitrogen oxide concentration, temperature and relative humidity has been done in planted park in the residential area. The relationship between nitrogen oxide and other factors, and its concentration on a pond in the sunken place of the park are analyzed. The results are shown as follow. 1. Planted park area was found to be a cool spot in the residential area. 1. The nitrogen oxide concentration was high around the trafic junctions and sloping roads than that of other area. 3. It was not found that nitrogen oxide concentration was higher on a pond in the sunken place of the park. 4. In the planted area, nitrogen oxide concentration and temperature were lower than those in the residential area around the park.
