서울시 인구증가가 환경오염물질의 변화에 미치는 영향에 관한 고찰

Abstract

In this paper environmental pollution is considered as a by - product of population increase and economic development.

The anticipated rise in environmental pollution is expressed as a result of urban expansion in size and functions.

Owing to the over-population and great density of the industrial area in Seoul environmental disruption has been brought out as a result of pollution. From this point of view, in order to determine the degree of environmental pollution, a time

series analysis, a principal component analysis, a multiple and partial correlation analysis have been undertaken with the data taken from the annual reports of Seoul metorpolitian Government statisitical Year book and the reports of the Seoul Institute of Hygiene. 1969 to 1974.

Eleven testing items were selected as variables, including population, concentration of sulfur dioxide, dust fall-out, total exhaust quantity of refuse and excrements, number of motor vehicles, use of Gasoline, Anthracite, Bunker c-oil, production of water and consumption level of electric power.

The results were as follows:

1. According to the time series analysis, as popolation increased, 10 variables environmental pollutants increased year by year.

2. Of the given variables from principal component analysis, three were classified as the causative factors to be identified as follows

1) Factor of Energy consumption

2) Factor of self-purificaton

3) Fcator of Environmental pollution

3. The cumulative percentage of eigen values from the three identified variables totaled 77.7%.

4. In the partial correlation between sulfur dioxide and population increase, it was shown that population increase would not give a direct influence to the increase of sulfur dioxide in the Environment.

5. There was no correlation between the quantity of dust fall-out and the population, but the increasement of population has some correlations with the refuse from the city (r=0.332), and with the use of anthracite for fuel (r=0.488).

6. As far as the population increase, the motor vehicles increase with the partial correlation of r=0.696.

7. the population in crease shows the increasement of anthracite use with r=0.361.