Abstract
We examined the influence that the temperature change in the city exerted on the O_x concentration. Investigation result of recent observation, it was shown that the temperature and the quantity of solar radiation were positive relations against of O_x concentration observation. In addition, the impact that the temperature rise of 1℃ gave to the O_x concentration was investigated by using a numeric model. As a result, it was shown that it was roughly the same quantitatively tendency compared with the observation result. Moreover, it was shown that the influence that biogenic VOCs increase and decrease exerted on the change in the O_x concentration was strong.
