地域環境を考慮した大気汚染物質の予測式の構築に関する研究
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Since high economic growth was achieved, air pollution in Japan has deteriorated due to smoke from factories caused by industrial development, exhaust gases from the increasing number of automobiles and new pollutants such as dioxins in modern life. Therefore, because the factor is due to economic conditions, achange in life style is necessary. Sagamihara City is a satellite town of Tokyo and Yokohama and has made a lot of progress with city development and administration accompanying economic growth. It is the purpose of this study to determine the trend in nitrogen dioxide emissions to confinually measure them at observation stations to estimate the degree of atmospheric environmental pollution throughout Sagamihara City and to construct a nitrogen dioxide prediction model including traffic density at Futinobe and Kamimizo. And in addition to the results of the previous paper, continuous observation and measurement stations were established at Fuchinobe and Kamimizo to esfimate environmental pollution, and when the prediction model was constructed, traffic density was added to explanatory variables, the examination was done, and the following conclusions were obtained: 1. There was a trend toward a lower nitrogen dioxide density in summer and a peak in winter, thereafter, there was a fall again at all observation points. It also showed a trend toward a lower nitrogen dioxide density at the city hall than at other points from April to July, but in winter the atmosphere was stabilized, and the difference has been reduced. 2. Traffic density: Saturday was less crowde, and Sunday more crowded. There was also less crowding from late December to March, and especially a greater difference between weekdays and holidays. As a result of correlation analysis, it was cleared that an up had a close relation to a down. Also, a result of T-test of nitrogen dioxide density, all combination was significant. 3. Wind velocity was lower up to August, and thereafter fluctuation greater for two months, and then stabilized in winter. The temperature range was 0℃ to 30℃ for the year. The humidity was high till October, and then tended to drop. As for traffic density, the results of T-tests of nitrogen dioxide density, in all combinations were significant. 4. As a result, at two observation points, the following nitrogen dioxide density prediction models were constructed: Prediction model for nitrogen dioxide from 1988 to 2000. Prediction model for nitrogen dioxide including traffic density from 1992 to 1995.
- 麻布大学の論文
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