한국환경보건학회지 (Journal of Environmental Health Sciences)
- 제13권1호
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- Pages.59-62
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- 1987
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- 1738-4087(pISSN)
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- 2233-8616(eISSN)
분필중의 중금속에 대한 연구
A Study on the Heavy Metals in Chalk
- Lee, Sang-Bong (Department of Preventire Medicine, College of Medine, Gyeong Sang National University) ;
- Choi, Moo-Ryong (Department of Preventire Medicine, College of Medine, Gyeong Sang National University)
- 발행 : 1987.04.01
초록
This study was carried out to determine the content of heavy metals in chalks. Samples were collected from 5 manufacturing companies of chalk. The content of lead and cadmium were analyzed by flame atomic absorption spectrophotometer. The results obtained were as follows: 1. The average content of lead was 22.0 ppm, and the range 6.4 - 50.9 ppm. 2. The average content and the range were 4.1 ppm and 2.8 - 4.8 ppm respectively.
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