指標植物을 利用한 大氣汚梁度 調査硏究 -大田市를 中心으로-

A Study on the Air Pollution Level in Tae Jǒn Area by Botanical Indicator

Air pollution has been one of the severe problems in city area. Sulfur dioxide is the major pollutant among the air pollutants. And the lichen as a botanical indicator have been used to predict the air pollution level. This study was carried out to evaluate the air pollution level in Taejon area through the field survey which were checked lichen status and sulfur dioxide content in the atmosphere. The results were as follows ; 1. The average sulfur dioxide content in Taejon area was 0.031ppm. The comparison of measurement methods were regression equation, Y= 0.357×+0.014 and correlation factor, r = 0.771. 2. The maximum point of the SO 2 level was site No. 2(Daehwa-Dong), 0.087 ppm and the minimum, site No. 8 (Doma 2-Dong), 0.009ppm. 3. Total amounts of sulfur dioxide yearly emitted from Taejon area by fuel consumption estimated 29829.6 tons. 4. The relationship between degree of lichen and sulfur dioxide contents were 0.000~0.020ppm : Zone No. 2 0.020~0.060ppm : Zone No. 1 over 0.060ppm : Zone No. 0