韓國人의 毛髮中 鉛含量에 關한 調査 : 농촌인, 도시인 및 鉛취급 근로자를 대상으로 = Lead Content in Hairs of some Koreans by Their Environmental Differences

다국어 초록 (Multilingual Abstract)

The drastic industrial development triggered by the first five year. Development Plan has eventually given rise to an undesirable by-products “environmental pollution”. Among many pollutants, lead has been recognized as one of the most threatening heavy metals to human health. In view of the fact that few specific and simple method has ever been adopted in the field- of air pollution and occupational medicine for the measurement of the amount of lead accumulated in human tissue, the authors have made an effort to measure the level of lead content in human hairs by means of atomic absorption spectrophotometry. A sample of hairs was collected from four different groups of people, namely, automobile drivers, printing workers, residents of urban (mostly of Seoul) and rural areas. The salient features of the finding could be summarized as follows.
1. For the rural residents, the average lead content in hairs was found to be 3.1？g/g (male) and 0.8？g/g (female) in the age group of 15 years and less, 5.7？g/g (male) and 6.4？S/g
(female) in the age group of 16-30 years, and 6.0？ g /g (male) and 6.8？g /g (female) in ages over 31 years.
2. For the urban residents, mostly of Seoul, the lead content in hairs averaged 5.？g/g, and further details by sex and age are: 5.1？g/g (male) and 3.5？g/g (female) in the age group - of 15 years and less, 7.9？g/g (male) and 8.5？ g/g female) in 16-30 years of age, 7.8？g/g (male) and 9.8？ g /g (female) in ages of 31 years and over.
3. For the automobile drivers, the average lead content in hairs by years of driving careers turned out to be 8. l？g/g in 5 years or less group, 13.2？g/g in 6-10years group and 14.9？g/g in the group of 11 years and over of driving career.
4. The average for the printing workers was turned out to be 15.0？g/g. The further breakdown showed that the highest level of 18.9？g/g was observed from the- group of “type foundry”, 14.7？g/g from stereotype and 11.5？g/g from monotype workers.
5. For the group of 30-50 years of age, a remarkable difference could be observed according to the type of environment, that is, 6.0？g/g was turned out to be the mean for rural residents, 7.？g/g for urban residents, 13. 2？g/g for professional drivers of more than 6 years of service and 15.0？g/g for printing workers.