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KMID : 0380319730110000089
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Journal of Korean Research Institute for Better Living
1973 Volume.11 No. 0 p.89 ~ p.104
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A Study on the Lead Content in the Air of Seoul, and in the Soil and Cabbage along Kyung-In and Kyung-Bu Highways
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Abstract
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The lead content in the air, soil and cabbage were determined colorimetrically by the Dithizone method.
The air samples were collected with an impinger in 10 heavy traffic districts during June 1-July 1, 1972, and the lead content was found to be 0.024mg/m^3 in the early morning, 5-6 A.M., and 0.048mg/m^3 in the rush hour, 9-10 A.M., whereas the air lead content during the same hours proved to be only 0.015mg/m^3 on the Bukak Skyway and 0.024mg/m^3 Bongwon Hill, the control districts.
The lead contents of soil and cabbage along the highway were also determined. The lead in soil were 16.10, 13.83 and 10.73㎍/g at 50, 100 and 150m distance from the highway. The lead in cabbage were 2.74, 2.15 and 1.65㎍/g at 50, 100 and 150m.
It is considered that the rapid increases of cars and other motor vehicles exhausted by them may affect the levels of lead content in the air, soil and cabbage.
The falling dust in the air sample were collected with the deposit gauge in 18 areas during 30 days from September, 1972 to January, 1973, and were determined pH(average 5.26), ash (inorganic subtancess), dust (average 23.74 tons/km^2/month) and Pb contents (average 4.863mg/m^2/month).
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