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KMID : 0353019710080010133
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Korean Journal of Public Health
1971 Volume.8 No. 1 p.133 ~ p.138
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Lead Content of Exhaust Gas
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Abstract
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The Determination of the lead content of 20 samples collected from the auto exhaust gases of 4 kinds of gasoline (Kocl Regular,Honam Regular, Kocl Premium and Honam Premium gasoline) were carried out and the total amount of lead of vehicular exhaust gas over Korea and in Seoul city were estimated in this study.
Five samples were collected from each kind of gasoline.
All samples were collected on the idling stage of the same car (Land Rover).
The measurement was performed by Dithizone Method.
The obtained results are as follows;
1. Typical calibration curve of the lead standard solutions showed linearity in the range of 0 to 25㎍. per ml. corresponding to about 0.400 absorbance.
2. Lead content of Honam Regular gasoline was 3,452 ±680 mg. per cubic meter of the exhaust gas and that of Koco was 3,224 ±740 mg. This difference was not statistically Significant.
3. Lead content of the Koco Premium gasoline was 10,150 ±1,90 mg. per cubic meter of the exhaust gas and that of Honam was 10,390 ±2,260 mg. The difference was not statistically significant.
4. Lead content of exhaust gas of Premium gasoline was about 3 times of that of Regular gasoline.
Therefore Premium gasoline may be more injurious to health than Regular gasoline in consideration of lead only.
5. Total amount of exhaust lead of vehicles over Korea and in Seoul were 157.5 ±33.5kg.,71.0 ±16.1kg. per day respectively.
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